I'tikaf in Ramadan

Malik :: Book 19 : Hadith 19.6.13

Ziyad related to me from Malik from Abu'n Nadr, the mawla of Umar ibn Ubaydullah, that Abdullah ibn Unays al-Juhani said to the Messenger of Allah, may Allah bless him and grant him peace, "Messenger of Allah, I am a man whose house is a long way away. Tell me one night so that I can stop my journey for it." The Messenger of Allah, may Allah bless him and grant him peace, said, "Stop on the twenty-third night of Ramadan."