It is narrated from Mujahid (may Allah have mercy on him) concerning this saying of Allah, the Mighty and Majestic: "And your movement among those who prostrate" [Surah al-Shu'ara: 219], that he said: "During the prayer, the Messenger of Allah (peace and blessings be upon him) used to see behind him just as he (peace and blessings be upon him) saw in front of him."
Al-Humaydi recorded this hadith in his Musnad, and its content is also established in the other Sahih collections.
Hadith Referenceالمطالب العالية بزوائد المسانيد الثمانية / كتاب التفسير / 3676
Hadith Gradingمحدثین:إسناده ضعيف، مقطوع
Hadith Takhrij«حکم الحدیث المطالب العالیہ محققاً تنسیق د. سعد بن ناصر بن عبد العزيز الشَّثري- مکتبہ شاملہ :إسناده ضعيف مقطوع » «أخرجه مسند الحميدي برقم: 992»