It is narrated from Hazrat Bilal Habashi (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) said: The Night of Qadr (Laylat al-Qadr) is on the 24th night of Ramadan.
Hadith Referenceمسند احمد / مسند الأنصار رضي الله عنهم / 23890
Hadith Gradingحکم دارالسلام:إسناده ضعيف لسوء حفظ ابن لهيعة، وقد خولف فيه