Ustad-e-Mohtaram On The Rivalry Between Hz. Ali (rta) And Hz. Muawiyah (rta)
In the latest part 5 of 100 questions on this issue you can find a reference to them
Please also refer to the video below from 1:12 to 10:12 https://youtu.be/TqFRsKgpcUI?si=XvZ4FQGDQ6620__k&t=72