مُسْنَدُ أَحْمَدَ
Musnad Ahmad 2312
Musnad of 'Abdullah bin al-'Abbas bin 'Abdul-Muttalib from the Prophet
It was narrated from Ibn ‘Abbas (رضي الله عنه) that The Prophet (ﷺ) prayed wearing a single garment that he wrapped around himself, and used its extra length to protect himself from the heat or coldness of the ground.
Musnad Ahmad 2320Hasan because of corroborating evidence; this is a da'eef is