«كان إذا دخل العشر شد مئزره وأحيا ليله وأيقظ أهله»
It was the practice of the Prophet (peace and blessings be upon him):
"When the last ten days of Ramadan began, he (peace and blessings be upon him) would tighten his waist-wrapper, spend his nights awake (in worship), and wake his family as well."
Hadith Referenceصحیح الجامع الصغیر / حرف الكاف / 4713
Hadith Gradingالألبانی:صحيح
Hadith Takhrij[ق د ن هـ] عن عائشة. مختصر مسلم ٦٣٤ نحوه.