Question:

Does An-Nattanzi belong to the followers of Ali (a.) or the followers of Umar?

Answer:

Abu Al-Fath An-Nattanzi writes: “Umar said to Ibn Abbas, may God be pleased with both: “Leave it to me and keep silent!” [Al-Khasa’is-ul-Alawiyyah, page 54]

فقال أبو الفتح النطنزي: وقال عمر لابن عباس رضي الله عنهما: أمسك علي واكتم