The Book of Prayers (Kitab Al-Salat)

Muslim :: Book 4 : Hadith 1919

'Abdullah b. 'Umar, while describing the Nafl prayer of the Messenger of Allah (may peace be upon him), said: He did not observe (Nafl) prayer after Jumu'a till he went back and observed two rak'ahs in his house. Yahya said: I guess that I uttered these words (before Imam Malik) that he of course observed (them).

Source materials are from the University of Southern California MSA site
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