Prayer (Kitab Al-Salat): Detailed Injunctions about Ramadan

Dawud :: Book 6 : Hadith 1379

Narrated Abdullah ibn Mas'ud:

The Apostle of Allah (peace_be_upon_him) said to us: Seek it (laylat al-Qadr) on the seventeenth night of Ramadan, and on the twenty first night, and on the twenty-third night. He then kept silence.