Why Salim Khan never writes for Salman

Salim Khan, renowned for his collaboration with Javed Akhtar in the 1970s, ceased writing films post their split in 1982. He hasn't written for his sons Salman, Arbaaz, or Sohail Khan. Salim finds it risky to work exclusively with Salman as producers question why he isn't making films with him if the scripts are strong.