I said, "Messenger of Allah, sometimes I am out hunting wearing nothing but a shirt. May I pray in it?"He replied, "Button it up, even if only with a thorn."
أخبرنا قتيبة قال حدثنا العطاف عن موسى بن إبراهيم
قلت يا رسول الله إني لأكون في الصيد وليس علي إلا القميص أفأصلي فيه قال وزره عليك ولو بشوكة
No references are available.
[Its chain of transmission is hasan] Abu Dawud, Prayer, Chapter on a man praying in a single shirt, hadith no. 632, related it from the hadith of Musa bin Ibrahim, and it is also in Kubra, hadith no. 841. Ibn Khuzayma graded it sahih, hadith no. 777, 778, as did Ibn Hibban (Ihsan), hadith no. 2291, and Hakim, 1/250, and Dhahabi.