وَعَنِ ابْنِ عُمَرَ أَنَّ أَبَاهُ عُمَرَ بْنَ الْخَطَّابِ رَضِيَ اللَّهُ عَنْهُ كَانَ يُصَلِّي مِنَ اللَّيْلِ مَا شَاءَ اللَّهُ حَتَّى إِذَا كَانَ مِنْ آخِرِ اللَّيْلِ أَيْقَظَ أَهْلَهُ لِلصَّلَاةِ يَقُولُ لَهُمْ: الصَّلَاةُ ثُمَّ يَتْلُو هَذِهِ الْآيَةَ: (وَأْمُرْ أَهْلَكَ بِالصَّلَاةِ وَاصْطَبِرْ عَلَيْهَا لَا نَسْأَلُكَ رِزْقًا نَحن نرزقك وَالْعَاقبَة للتقوى) رَوَاهُ مَالك
Ibn ‘Umar said that his father ‘Umar b. al-Khattab used to pray during the night what God wished, then during the latter part of the night he woke his family for prayer saying to them, “Come to prayer.” Then he would recite this verse, “And command your family to observe the prayer, and be constant in it. We do not ask you for provision; We provide you, and the issue pertains to piety” (Al-Qur'an; 20:132). Malik transmitted it.
Reported by Malik (No. 259). Cited in Mishkat al-Masabih (No. 1240).