Ibn Abi Khalid narrated from his father, he said: I saw Abu Huraira (may Allah be pleased with him), he performed the Fajr prayer and he would shorten it. I said: Abu Huraira! Did the Messenger of Allah (peace and blessings be upon him) use to pray like this? He said: Yes, even shorter than this.
Hadith Referenceمسند اسحاق بن راهويه / كتاب الصلوٰة / 156
Hadith Takhrij«مسند احمد : 472/2 . مسندي حميدي ، رقم : 987 . اسناده حسن لغيره .»