´It was narrated from 'Amr bin Maimun from "Abdullah bin Rubayy'ah As-Sulami, who was also one of the Companions of Allah's Messenger from 'Ubaid bin Khalid As-Sulami, that:` the Messenger of Allah established the bond of brotherhood between two men. One of them was killed and the other died after him. We offered the funeral prayer for him, and the Prophet said: "What did you say?" They said: "O Allah, forgive him; O Allah, have mercy on him; O Allah, join him with his companion." The Prophet said: "Where is his Salah in comparison to his companion's Salah? Where are his deeds in comparison to his companion's deeds? Indeed the difference between heaven and Earth." (One of narrators) 'Amr bin Maimun Said: "I was happy with that because he raised it for me."
Hadith Referenceسنن نسائي / كتاب الجنائز / 1987
Hadith Gradingالألبانی:صحيح | زبیر علی زئی:إسناده حسن
➊ In this narration, the teacher of Hazrat Amr ibn Maymun is a Companion (Sahabi), and he is narrating from another Companion. If one Companion does not mention the intermediary of another Companion, the reliability of the narration’s chain (isnad) is not weakened; however, mentioning the intermediary is preferable. This is why Hazrat Amr ibn Maymun expressed his happiness regarding this narration.
➋ Thus, in the funeral prayer, one should make a general supplication for forgiveness and elevation of ranks. Referring to a specific personality or attributing something to them is not appropriate, because the true status of every person is known only to Allah Ta’ala. However, reference to qualities can be made, such as: “O Allah! Join him with the martyrs (shuhada) and the righteous (salihin),” etc.
➌ A long life filled with righteous deeds (a‘mal salihah) is a blessing for a Muslim person.
➍ Due to an increase in humility, submission, sincerity, and piety (taqwa), sometimes a person, even if he passes away on his bed, attains a rank equal to or higher than that of a martyr (shaheed).
Source: Sunan Nasa'i: Translation and Benefits by Shaykh Hafiz Muhammad Amin Hafizullah, Page: 1987
Narrated Ubaydullah ibn Khalid as-Sulami: The Messenger of Allah ﷺ made a brotherhood between two men, one of whom was killed (in Allah's path), and a week or thereabouts later the other died, and we prayed at his funeral). The Messenger of Allah ﷺ asked: What did you say? We replied: We prayed for him and said: O Allah, forgive him, and join him to his companion. The Messenger of Allah ﷺ said: What about his prayers since the time the other died, and his fasting since the time the other died--the narrator Shubah doubted the words, "his fasting--and his deeds since the time the other died. The distance between them is just like the distance between heaven and earth.
Shaykh Umar Farooq Saeedi
Benefits and Issues: Life is an extremely precious possession. Every moment that passes, a person is either elevating his status with Allah or lowering it. The martyr (shaheed) has a special rank and status. However, some who are not martyrs (ghayr-shuhada) will attain lofty ranks due to their sincerity (ikhlas), piety (taqwa), and abundance of deeds. For example, Abu Bakr as-Siddiq radi Allahu anhu is the most superior in the Ummah of Muhammad sallallahu alayhi wa sallam. Even though he was not honored with the distinction of martyrdom (shahadah).
Source: Sunan Abu Dawood – Commentary by Shaykh Umar Farooq Saeedi, Page: 2524