The Ordinance about Prisoners - Section 2 Mishkat al-Masabih 3972
Arabic hadith text
وَعَنِ ابْنِ مَسْعُودٍ أَنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ لَمَّا أَرَادَ قَتْلَ عُقْبَةَ بْنَ أَبِي مُعَيْطٍ قَالَ: مَنْ لِلصِّبْيَةِ؟ قَالَ: «النَّار» . رَوَاهُ أَبُو دَاوُد
Translation
Ibn Mas'ud told that when God’s Messenger intended to kill ‘Uqba b. Abu Mu'ait he asked who would look after the children, and he replied that hell would. Abu Dawud transmitted it.