You can chant the Hanuman Shabar Mantra as often times as you're feeling relaxed, regardless of whether for a particular amount of repetitions or for a certain length. रं रं रं राक्षसान्तं सकलदिशयशं रामदूतं नमामि ॥ १॥ This mantra salutes Lord Hanuman since the one particular that's swift as https://www.youtube.com/watch?v=ufkmD95y7fE&t=2s