Mishkat al-Masabih 29 Excellent Qualities and Description of the Prophet كتاب الفضائل والشمائل 136

وَعَنْ أَبِي قَتَادَةَ أَنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ لِعَمَّارٍ حِينَ يَحْفِرُ الْخَنْدَقَ فَجَعَلَ يَمْسَحُ رَأسه وَيَقُول: «بؤس بن سميَّة تقتلك الفئة الباغية» . رَوَاهُ مُسلم

Abu Qatada told that when `Ammar was digging the trench God’s messenger began to wipe his head and say, “How unfortunate Ibn Sumayya is! The wicked party will kill you[*].” *Yasir, ‘Ammar’s father, is said to have come from the Yemen to Mecca, where he married a slave woman called Sumayya who bore ‘Ammar. `Ammar fought on ‘Ali’s side at the battle of Siffin (37 A.H.) and was killed. The wicked party mentioned in the tradition is Mu’awiya s army. See Ibn `Abd al-Barr, Isti’ab pp. 422 ff. Muslim transmitted it.