It is narrated from Sayyiduna Qays bin al-Sa'ib (may Allah be pleased with him): "The Messenger of Allah (peace and blessings be upon him) used to offer the Fajr prayer when light spread across the sky, Zuhr when the sun had passed its zenith, Asr when the sun was white and clear, and Maghrib when the fasting person breaks his fast; and he (peace and blessings be upon him) used to delay the Isha prayer."
This hadith is narrated from Sayyiduna Qays (may Allah be pleased with him) only with this chain, in which Ayyub (may Allah have mercy on him) is alone.
Hadith Referenceالمعجم الأوسط / باب الألف / 910
Hadith Gradingمحدثین:إسناده ضعيف لضعف مسلم
Hadith Takhrij«قال ابن حجر: مسلم ضعيف «الإصابة في تمييز الصحابة، ج 9، ص 108»» «أخرجه ابن أبي شيبة فى «مصنفه» برقم: 6333، والطبراني فى «الكبير» برقم: 931»