Which son of Hazrat Muhammad ﷺ reached adulthood?

Which son of Hazrat Muhammad ﷺ reached adulthood?

حضرت محمد ﷺ کا کون سا بیٹا جوانی کو پہنچا؟
Explanation

Prophet Muhammad ﷺ had three sons

Hazrat Qasim died at the age of only 3 

Hazrat Abdullah has died at the age of 4

Ibrahim ibn Muh has died at the age of 2 


Additional Information:

Prophet Muhammad  had three sons and four daughters.

1. Hazrat Qasim 
2. Hazrat Zainab (RA)
3. Hazrat Ruqayyah (RA) 
4. Hazrat Umm Kulthum (RA) 
5. Hazrat Fatima (RA) 
6. Hazrat Abdullah
7. Hazrat Ibrahim 

All of his children were born to Hazrat Khadijah (RA) except one son Ibrahim, who was born to Hazrat Maria al-Qibtiyah (RA).