- Du‘ā’ (supplication) is an act of worship that must be exclusively devoted to Allah Almighty.
- The merit of Tawhīd and that whoever dies while upon Tawhīd will be admitted to Paradise, even if punished for some of his sins first.
- The danger of Shirk (polytheism) and that whoever dies upon Shirk will enter Hellfire.
Whoever dies while invoking besides Allah another equal will enter Hellfire
‘Abdullah ibn Mas‘ūd (may Allah be pleased with him) reported: "The Prophet (may Allah's peace and blessings be upon him) said something and I said another thing. The Prophet (may Allah's peace and blessings be upon him) said: 'Whoever dies while invoking besides Allah another equal will enter Hellfire.' And I say: 'Whoever dies while not invoking besides Allah another equal will enter Paradise.'"
Authentic hadith
Narrated by Bukhari & Muslim
Explanation
The Prophet (may Allah's peace and blessings be upon him) informs us that whoever devotes anything that must be devoted exclusively to Allah to other than Him, like supplicating other than Allah or seeking relief with other than Him, and dies in this state will be from the dwellers of Hellfire. Ibn Mas‘ūd (may Allah be pleased with him) added that whoever dies while not associating anything with Allah will be eventually admitted to Paradise.