Ibn Rajab [رحمه الله] said:
❝Strive today in implementing Tawheed, since there is nothing that will deliver you to Allaah except Tawheed. Also, be eager in fulfilling its rights, since there is nothing that can save you from the fire except Tawheed.❞
[Kalimat ul-Ikhlaas, (No. 54) | Translated By Abbas Abu Yahya Miraath al-Anbiyya]