(14) باب بَيَانِ تَفَاضُلِ الإِسْلاَمِ وَأَىِّ أُمُورِهِ أَفْضَلُ
It is narrated on the authority of 'Abdullah b. 'Amr that a man asked the Messenger of Allah (may peace and blessings be upon him) which of the merits (is superior) in Islam. He (the Holy Prophet) remarked:
That you provide food and extend greetings to one whom you know or do not know. (RU)
Reference (RU): Sahih Muslim 39 (RU)
In-book reference (RU): Book 1, Hadith 67 (RU)
USC-MSA web (English) reference(deprecated numbering scheme): Book 1, Hadith 63 (RU)