It is narrated from Sayyiduna Suraqah bin Malik (may Allah be pleased with him); he said that the Messenger of Allah (peace and blessings be upon him) said to me: "Shall I not tell you about charity - or (he said) about the greatest charity? (It is) your daughter who has been returned to you (divorced or widowed) and has no one to earn for her except you." This hadith is sahih (authentic) on the condition of Muslim, but the two Shaykhs (Bukhari and Muslim) did not record it.