It is narrated from Sayyiduna Talhah (may Allah be pleased with him) that once the Prophet (peace and blessings be upon him) said: "A person should use anything, even the rear part of a camel's saddle, as a sutrah and then perform prayer."
Hadith Referenceمسند احمد / مسند باقي العشرة المبشرين بالجنة / 1398