Sayyiduna Abu Qatadah (may Allah be pleased with him) said: We were with the Messenger of Allah (peace and blessings be upon him) on one of his journeys when he (peace and blessings be upon him) leaned over on his mount from drowsiness, so I supported him (peace and blessings be upon him) with my hand until he woke up. Then he (peace and blessings be upon him) leaned over again, and I again supported him with my hand until he woke up. Then he (peace and blessings be upon him) said: "O Allah, protect Abu Qatadah as he has protected me tonight. It seems to us that we have put you to hardship." And Sayyiduna Abu Qatadah (may Allah be pleased with him) used to dye (his hair) with yellow.
Hadith Referenceالمعجم الكبير للطبراني / باب الحاء / 3258