(Lukman) 31 : 21
وَإِذَا قِيلَ لَهُمُ اتَّبِعُوا مَا أَنْزَلَ اللَّهُ قَالُوا بَلْ نَتَّبِعُ مَا وَجَدْنَا عَلَيْهِ آبَاءَنَا ۚ أَوَلَوْ كَانَ الشَّيْطَانُ يَدْعُوهُمْ إِلَىٰ عَذَابِ السَّعِيرِ

And when it is told to them: “You follow what Lord Allah has sent down”, they say: “Nay, we will follow the way which we have seen our forefathers”, even if Satan is inviting them to the Blaze?

Whoever hides and rejects Adhikr (Guidance from Allah and the Ticket to return to Paradise) after receiving It, they are the Kafir (disbeliever). They will get Hellfire (Satan’s house) as punishment for doing swalath, fasting, Hajj, Umra, etc. as explained in verses 2: 186 and 25: 65-66. It is told in verse 5: 104 that if they are told: “You come to what Lord Allah has sent down" and to the Messenger, they say: "Enough for us the ways which we found our forefathers, even though their forefathers were not knowing anything and were not guided (they will follow their ways)”. See explanation 2: 170-171 and 22: 3.