ॐ आञ्जनेयाय विद्महे वायुपुत्राय धीमहि। What ever mantra you chant Hanuman Ji, trying to keep in mind its that means, chant it bit by bit or mentally with full devotion. By no means chant the mantra aloud. By your grace, 1 will go to the immortal abode of Lord Rama https://bamboo-directory.com/listings764389/the-greatest-guide-to-hanuman-mantra