If I may say so, the translator himself was also acting underneath the similar self-imposed restriction when he mentions in his foot- Observe (p.275) only one source for that occasion of Ghadir Khumm, which is, al-Baladhuri. Any scholar a little aware of hadith, islamic history along with the discourses https://johnnyf3w88.eedblog.com/33719561/everything-about-great-opportunity-to-travel