Uthmaan ibn Affan (ra) session 101.
Muawiyah ibn Abu Sufyaan (ra) tries to safeguard Uthmaan (ra) years before the siege and encourages the senior sahabas (ra) to look after the caliph.
Abdullah ibn Salaam (ra) also eloquently tries to prevent this pervasive fitnah.
The myth that the sahabas (ra) were not defending the caliph during his martyrdom is put to bed.