Just another lie from another shia writer.
Book: “Mia Masail Muhimmat Hawla Shia”.
Printed by: Darul Irfan, Kuwait.
Author: Saeed Mahdi Muhammad as-Suwaysh.
And in Saheeh Muslim volume 1, page 47 with chain till ibn Masood, that messenger (sallalahu alaihi wa ala alihi wa sallam) ordered to Muslims to say in the Azan and Iqama: Hayya ala Khayril Amal, and when Umar become ruler he dropped it.
This is a pure lie from ignorant rafidi! Because such report doesn’t exist in Saheeh of Imam Muslim.