I'tikaf in Ramadan

Malik :: Book 19 : Hadith 19.3.6

Yahya related to me from Ziyad from Malik that he saw some of the people of knowledge who, when they did itikaf in the last ten days of Ramadan, would not go back to their families until they had attended the Id al-Fitr with everybody.

Ziyad said that Malik said, "I heard this from the people of excellence who have passed away, and it is what I like most out of what I have heard about the matter."