Musannaf Ibn Abi Shayba 11:32

Waki’ narrated to us, [who said] Thawr narrated to us, from ‘Abd al-Rahman ibn ‘A’idh, from Mujahid ibn Rabah, from Ibn ‘Umar, who said: "Shall I not inform you of a night that is better than the Night of Decree (Laylat al-Qadr)? A guard who kept watch in the way of Allah, the Mighty and Majestic, in a land of fear, perhaps he will not return to his family."