Standing guard in the cause of Allah

Sayyiduna Abu Rayhanah (may Allah be pleased with him) narrates: We were with the Prophet (peace and blessings be upon him) in a battle. One day we reached a hillock and spent the night on it. We were struck by severe cold, so much so that I saw a man dig a pit in the ground, get into it and put his shield over himself. When the Prophet (peace and blessings be upon him) saw the people's condition, he called out: "Who will guard us tonight? I will make a supplication to Allah Almighty for him in which there will be excellence for him." A man from the Ansar said: O Messenger of Allah, I will. The Prophet (peace and blessings be upon him) said: "Come closer." He came closer, and the Prophet (peace and blessings be upon him) asked: "Who are you?" The Ansari told the Prophet (peace and blessings be upon him) his name. The Prophet (peace and blessings be upon him) made supplication for him and supplicated abundantly. Sayyiduna Abu Rayhanah (may Allah be pleased with him) says: When I heard the supplication of the Prophet (peace and blessings be upon him), I said: I will be another one. The Prophet (peace and blessings be upon him) said: "Come closer." I came closer. The Prophet (peace and blessings be upon him) said: "Who are you?" I said: O Messenger of Allah, Abu Rayhanah. The Prophet (peace and blessings be upon him) made supplication for me, but it was less than what he had made for the Ansari. Then he said: "Hell is forbidden to an eye that sheds tears (or he said: that weeps) out of fear of Allah, and Hell is forbidden to an eye that stays awake through the night in the path of Allah." (Or he said:) "Hell is also forbidden to a third eye," but the narrator Muhammad bin Sumayr did not hear (the mention of) it. (Allamah al-Haythami says:) I say: Al-Nasa'i (may Allah have mercy on him) recorded part of it. (Allamah al-Haythami says:) I say:
Ahmad recorded it, and al-Tabarani in al-Mu'jam al-Kabir and al-Mu'jam al-Awsat; the narrators of Ahmad are thiqat (trustworthy).

Sayyiduna Mu'adh bin Anas (may Allah be pleased with him) reports that the Prophet (peace and blessings be upon him) said: "Whoever stands guard over the Muslims in the path of Allah, doing so voluntarily, not compelled by any ruler, his eyes will not see the Fire except to fulfil the oath, for Allah Almighty has said: 'There is not one of you but will come to it.'"
Ahmad, Abu Ya'la and al-Tabarani recorded it; one of the two chains of Ahmad contains Ibn Lahi'ah, and he is in a better condition than Rishdin.

Sayyiduna Anas bin Malik (may Allah be pleased with him) narrates that the Prophet (peace and blessings be upon him) said: "Two kinds of eyes will never be touched by the Fire: an eye that spends the night guarding the Muslims in the path of Allah, and an eye that weeps out of fear of Allah."
Abu Ya'la recorded it, and al-Tabarani recorded something similar in al-Mu'jam al-Awsat, except that his wording is: "They will not see the Fire." The narrators of Abu Ya'la are thiqat (trustworthy).

Sayyiduna al-Abbas bin Abd al-Muttalib (may Allah be pleased with him) narrates that the Prophet (peace and blessings be upon him) said: "Two kinds of eyes will not be touched by the Fire: an eye that weeps in the depth of the night out of fear of Allah, and an eye that spends the night standing guard in the path of Allah."
Al-Tabarani recorded it; its chain contains Uthman bin Ata' al-Khurasani, who is matruk (abandoned), though Duhaym declared him thiqah (trustworthy).

Sayyiduna Mu'awiyah bin Haydah (may Allah be pleased with him) narrates that the Prophet (peace and blessings be upon him) said: "There are three whose eyes will not see the Fire: an eye that stood guard in the path of Allah, an eye that wept out of fear of Allah, and an eye that kept away from what Allah has made forbidden."
Al-Tabarani recorded it; its chain contains Abu Habib al-Anqazi, also called al-Qanawi, whom I do not know. The rest of its narrators are thiqat (trustworthy).

Sayyiduna Abu al-Darda' (may Allah be pleased with him) narrates that the Prophet (peace and blessings be upon him) said: "Whoever stays by the sea, hoping for reward and with a sincere intention, to protect the Muslims, Allah Almighty records for him a good deed for every drop in the sea."
Al-Tabarani recorded it; its chain contains Yusuf bin al-Safr, who is matruk (abandoned), and the chain is munqati' (broken).

Sayyiduna Abu Atiyyah (may Allah be pleased with him) narrates: The Prophet (peace and blessings be upon him) sat down and related that a man had died. He asked: "Has any one of you seen him doing any good deed?" A man said: Yes. I stood guard with him one night in the path of Allah. So the Prophet (peace and blessings be upon him) and his Companions stood up, and he offered the funeral prayer for him. When the man had been lowered into the grave, the Prophet (peace and blessings be upon him) scattered earth on his grave with his own blessed hand and then said: "Your companions thought that you were among the people of Hell, and I bear witness that you are among the people of Paradise." Then the Prophet (peace and blessings be upon him) said to Sayyiduna Umar bin al-Khattab (may Allah be pleased with him): "Do not ask about people's deeds; rather, ask about the fitrah (natural disposition)."
Al-Tabarani recorded it from his teacher Ibrahim bin Muhammad bin Irq al-Himsi, whom al-Dhahabi declared da'if (weak).