Wa `alaykum As-Salamu wa Rahmatullahi wa Barakatuh

 

In the Name of Allah, the All-Merciful, the Mercy-Giving

 

All praise is due to Allah. Peace and blessings be upon His Messenger Muhammad.

 

You can refer to the chapters of Al-Bukhari, Muslim, Abu Dawud, At-Trimidhi, An-Nasa’i and Ibn Mājah to collect the authentic supplications the Prophet (peace be upon him) used to say.

 

There are two significant books which may be of great benefit for you, namely, Hisn Al-Muslim (the Fortress of a Muslim) and Imam An-Nawawi’s Book of Remembrance (Kitab al-Adhkar). The former is available for free at the following link:

https://islamhouse.com/en/books/39062/

 

The latter is available at the following link:

https://archive.org/details/TheBookOfRemembrancesKitabAlAdhkar

 

Almighty Allah knows best.