His will upon his return from Siffin
Nahj al-Balāgha|Volume 1|Book 2|Chapter 24
هذَا مَا أَمَرَ بِهِ عَبْدُ اللهِ عَلِيُّ بْنُ أَبِي طَالِبٍ أَمِيرُ الْمُؤْمِنِينَ فِي مَالِهِ، ابْتِغَاءَ وَجْهِ اللهِ، لِيُولِجَهُ بِهِ الْجَنَّةَ، وَيُعْطِيَهُ الْأَمَنَةَ.
This is what ‘Alī ibn Abī Ṭālib, the slave of Allāh has laid down about his property, in pursuance of seeking Allāh’s pleasure so that He may by virtue of it give him entry into Paradise and accord him peace.