Abdul-Rahman bin Abdul-Qari reported,

He heard Umar bin Khattab teaching the people the tashahhud from the pulpit, saying, "Say, 'All greetings belong to Allah, all pure acts belong to Allah, all good deeds belong to Allah, all prayers belong to Allah. Peace be upon you, Prophet, and the mercy of Allah and His blessings. Peace be upon us and upon the righteous servants of Allah. I bear witness that there is no god but Allah, and I bear witness that Muhammad is His servant and His messenger.'"

Azami 11021

Sahih

عن عبد الرحمن بن عبد القاري

أنه سمع عمر بن الخطاب يعلم الناس التشهد على المنبر، فيقول: قولوا: التحيات لله، الزاكيات لله، الطيبات لله، الصلوات لله، السلام عليك أيها النبي ورحمة الله وبركاته، السلام علينا وعلى عباد الله الصالحين، أشهد أن لا إله إلا الله، وأشهد أن محمدا عبده ورسوله.

الأعظمي 11021صحيح
Contents
Reference
Commentary
Ayat
Collection
Jami al-Kamil
Book
Supplications, remembrances, and prayer upon the chosen Prophet ﷺ
Chapter
Supplications of adhan and prayer, and what is related to them
Section
Different wordings of tashahhud
Numbering
Jami al-Kamil 11021 (2nd edition)
Azami 11021