عَنِ ابْنِ عَبَّاسٍ رَضِيَ اللَّهُ عَنْهُمَا قَالَ: مَشَى مَعَهُمْ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ إِلَى بَقِيعِ الْغَرْقَدِ، ثُمَّ وَجَّهَهُمْ، وَقَالَ: ((انْطَلِقُوا عَلَى اسْمِ اللَّهِ، اللَّهُمَّ أَعِنْهُمْ)) يَعْنِي النَّفَرَ الَّذِينَ وَجَّهَهُمْ إِلَى كَعْبِ بْنِ الْأَشْرَفِ
It is narrated from Sayyiduna Abdullah bin Abbas (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) walked with them up to Baqi' al-Gharqad, then bade them farewell and said: "Go in the name of Allah. O Allah! Help these people." By these people, he (peace and blessings be upon him) meant those whom he had sent to kill Ka'b bin Ashraf.