When should tasbeeh be made?
Tasbeeh could be general which is unrestricted to a time period or Tasbeeh could be specific which is restricted to a time period or to the exact amount that was narrated on the Prophet sallahu alayhi wa salam. For example, the Tasbeeh after the prayer (is specific) and so on (ie. there are more examples).
AbdulFattaah bin Uthman