Hadith 17:667
Hafs ibn Ghiyath narrated to us, from ‘Amr, from al-Hasan, who said: ‘Ali said: "The first [time] is an announcement. The second is a consultation. The third is a firm decision: either they give permission, or they are turned back."
حدثنا حفص بن غياث عن عمرو عن الحسن قال قال علي الأولى إعلام والثانية مؤامرة والثالثة عزمة إما أن يؤذنوا وإما أن يردوا