Maliks Muwatta Book 019, Hadith Number 009A.

Section : Making Up for the Itikaf (Not Done).

Ziyad related to me from Malik from Ibn Shihab that the Messenger of Allah, may Allah bless him and grant him peace, used to go to relieve himself in houses.

Malik said, "Someone doing itikaf should not leave for his parents' funeral or for anything else."