It is narrated from Abu Awn (may Allah have mercy on him) that Abu Darda (may Allah be pleased with him) used to say: "Whatever night I spent on the face of the earth, if I reached the morning in such a state that people did not find any harshness in me, (then in such a state) I found Allah's blessing upon myself."
Hadith Referenceالسنن المأثورة / باب أيام التشريق / 393