Amr bin Shurahbil (may Allah have mercy on him) said: "I was hesitant regarding the matter of Siffin, so I prayed to Allah to grant me peace of mind. Then I saw in a dream that the companions of Ali (may Allah be pleased with him) were in a lush garden with flowing water, and they were saying: 'We found our Lord to be Merciful.' And I saw some of the people of Muawiyah in front of me, and regarding the people of Nahrawan, it was said: 'They were cast into a bad state.'"
Hadith Referenceسنن سعید بن منصور / كتاب الجهاد / 4131
Hadith Takhrij«أخرجه سعيد بن منصور فى «سننه» ترقيم الدرالسلفية برقم:، 2955، والبيهقي فى«سننه الكبير» برقم: 16818، وابن أبى شيبة فى «مصنفه» برقم: 38999»