Virtues of Sa'd bin Mu'adh (may Allah be pleased with him): what the hypocrites said at his funeral and the reply of the Messenger of Allah (peace and blessings be upon him)

It is narrated from Sayyidah Asma' bint Yazid bin al-Sakan al-Ansariyyah (may Allah be pleased with her) that when Sayyiduna Sa'd bin Mu'adh (may Allah be pleased with him) passed away, his mother cried out and wept. The Messenger of Allah (peace and blessings be upon him) said to her: "Will your tears not dry and your grief not go away? Your son is the first person at whom Allah Almighty smiled (with pleasure) and for whom the Throne shook."
This hadith has a sahih (authentic) chain of narration.

It is narrated from Sayyiduna Anas (may Allah be pleased with him) that when the bier of Sayyiduna Sa'd bin Mu'adh (may Allah be pleased with him) was carried, the hypocrites began to say: How light his bier is! And that is only because of the (harsh) judgment he gave concerning Banu Qurayzah. When this reached the Prophet (peace and blessings be upon him), he (peace and blessings be upon him) said: "No, rather the angels were carrying his bier."
This hadith is sahih (authentic) on the condition of the two Shaykhs (Bukhari and Muslim), but they did not record it.

It is narrated from Sayyidah Aishah (may Allah be pleased with her) that we were returning from a journey, and at Dhu al-Hulayfah people came out to welcome us; the young men of the Ansar used to come out to welcome (travelers). There they met Sayyiduna Usayd bin Hudayr, and people informed him of the death of his wife, so he covered himself with his sheet and began to weep. I said to him: Subhan Allah! You are a Companion of the Messenger of Allah (peace and blessings be upon him) and you have such a high standing in Islam, yet you are weeping over a woman? He removed the sheet from his head and said: You have spoken the truth, by the life of Allah! It befits me not to weep over anyone after Sa'd bin Mu'adh, for the Messenger of Allah (peace and blessings be upon him) said about him what he said. I asked: What did he (peace and blessings be upon him) say about him? He said: He (peace and blessings be upon him) said: "The Throne of Allah shook at the death of Sa'd bin Mu'adh." Aishah said: At that time he (Usayd) was walking between me and the Messenger of Allah (peace and blessings be upon him).
This hadith has a sahih (authentic) chain of narration, but the two Shaykhs (Bukhari and Muslim) did not record it.