Nahjul Balagha Part 1, The Sermons
Sermon 62: Surely, there is a strong protective shield of Allah...
When Amir al-mu'minin was warned of being killed by deceit, he said:
ومن كلام له (عليه السلام)
لمّا خُوِّف من الغيلة
Surely, there is a strong protective shield of Allah over me. When my day would come it would get away from me and hand me over to death. At that time neither an arrow would go amiss nor a wound would heal up.
وَإِنَّ عَلَيَّ مِنَ اللهِ جُنَّةً حَصِينةً، فَإِذَا جَاءَ يَوْمِي انْفَرَجَتْ عَنِّي وَأَسْلَمَتْنِي؛ فَحِينَئِذٍ لاَ يَطِيشُ السَّهْمُ وَلاَ يَبْرَأُ الْكَلْمُ.
Alternative Sources for Sermon 62
(1) Ibn Kathir, al-Bidayah, VIII, 12, from (2)
(2) Abu Dawud, Kitab al-qadar;
(3) al-'Amidi, Ghurar, 89;
(4) al-Zamakhshari, Rabi`, bab al-qatl wa al-shahadah.