Protect your Tawheed above everything else.
“And your God is One God. There is no deity worthy of worship except Him, the Most Compassionate, the Most Merciful.”
Surah Al-Baqarah | ayah:163
“Whoever associates others with Allah ˹in worship˺ will surely be forbidden Paradise by Allah. Their home will be the Fire. And the wrongdoers will have no helpers.”
Surah Al-Ma’idah | ayah:72
“Say, “He is Allah, the One.””
Surah Al-Ikhlas | ayah:1
The Messenger of Allah ﷺ said: “Whoever meets Allah without associating anything with Him will enter Paradise, and whoever meets Him associating anything with Him will enter the Fire.”
Source: Sahih Muslim, 93
“The happiest person who will receive my intercession on the Day of Resurrection is the one who said, “There is no deity worthy of worship except Allah,” sincerely from his heart.”
Source: Sahih al-Bukhari, 99
Imam Ibn al-Qayyim رحمه** **الله **said: “**The first obligation upon the accountable person is to know the purpose for which Allah created the creation and sent the Messengers, and for which He revealed the Books. It is the worship of Allah alone without any partner.
Source: Miftah Dar as-Sa’adah | Vol. 1
Learn Tawheed, act upon it sincerely, and ask Allah to keep your heart firm upon it until you meet Him.