It is narrated from Hazrat Abu Qatadah (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) said: There is no negligence in sleep; negligence is associated with wakefulness.
Hadith Referenceمسند احمد / مسند الأنصار رضي الله عنهم / 22600
Hadith Gradingحکم دارالسلام:حديث صحيح، م: 681، وهذا إسناد حسن