Nafi’ says that Sayyiduna Abdullah bin Umar (may Allah be pleased with them) used to say: If a man has only one garment, he should tie it as a lower wrap (izaar) and pray in it, because I heard Sayyiduna Umar (may Allah be pleased with him) saying this, and he also used to say: If there is only one garment, do not wrap it around yourself like a blanket as the Jews do. Nafi’ says: If I say that he attributed this to the Prophet (peace and blessings be upon him), I hope I will not be lying.
Hadith Referenceمسند احمد / مسند الخلفاء الراشدين / 96