saḥ - he (Nārada); āha - said; devam - the lord; giriśam - Śiva; upādhāva - you should worship; āśu - quickly; siddhyasi - you will become successful; yaḥ - who; alpābhyām - slight; guṇa - by good qualities; doṣābhyām - and faults; āśu - quickly; tuṣyati - is satisfied; kupyati - is angered.

Nārada told him: Worship Lord Śiva and you will soon achieve success. He quickly becomes pleased by seeing his worshiper’s slightest good qualities — and quickly angered by seeing his slightest fault.