The active participle in Arabic turns a verb into a noun that represents someone as a doer of an action. It’s similar to the way that “-er” turns “sing” and “write” into “singer” and “writer.” The pattern for creating an active participle depends on which form a verb is in. In this instance, we can work with the word, “اَتَّقَى” which is in Form VIII and means, “was protected” or “was conscious.” 

اَتَّقَى

To turn this into the active participle, we first have to find the active participle pattern for Form VIII which is: مُفْتَعِل. 

مُفْتَعِل

So I would apply it as follows: 

مُاتَّقَى