Sayyidah Aishah (may Allah be pleased with her) narrates that when the last ten (nights) began, the Messenger of Allah (peace and blessings be upon him) would keep his nights alive (in worship), wake his family, and tighten his waist-wrapper.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصيام / 8560
Sayyidah Aishah (may Allah be pleased with her) narrates that the Messenger of Allah (peace and blessings be upon him) would strive in the last ten (nights) to a degree that he did not strive on other days.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصيام / 8561
Sayyiduna Ali (may Allah be pleased with him) narrates that when the last ten (nights) of Ramadan came, the Prophet (peace and blessings be upon him) would tighten his waist-wrapper and keep away from his wives.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصيام / 8562