The supplication of Aishah (may Allah be pleased with her) for Abd al-Rahman bin Awf (may Allah be pleased with him) for his kindness to kin

It is narrated from Umm Bakr bint al-Miswar that Sayyiduna Abd al-Rahman bin Awf (may Allah be pleased with him) sold a piece of his land for forty thousand dinars, and then distributed that sum among Banu Zuhrah, the poor Muslims, the Muhajirun and the wives of the Prophet (peace and blessings be upon him). He also sent some of that wealth to Sayyidah Aishah (may Allah be pleased with her), and she asked: "Who sent this wealth?" I said: "Abd al-Rahman bin Awf," and I told her the whole story. At this she said that the Messenger of Allah (peace and blessings be upon him) had said: "After me, only those who are patient will treat you kindly." May Allah Almighty give Ibn Awf to drink from the spring of Salsabil in Paradise.
This hadith has a sahih (authentic) chain of narration, but the two Shaykhs (Bukhari and Muslim) did not record it.

Sayyidah Umm Salamah (may Allah be pleased with her) narrates: I heard the Messenger of Allah (peace and blessings be upon him) say to his wives: "After me, the one who treats you kindly will be the truthful and righteous one." (Then she supplicated:) "O Allah! Give Abd al-Rahman bin Awf to drink from the spring of Salsabil in Paradise."
This hadith is authentically established from both Sayyidah Aishah and Sayyidah Umm Salamah (may Allah be pleased with them both).