2:189

۞ يَسْـَٔلُونَكَ عَنِ ٱلْأَهِلَّةِ ۖ قُلْ هِىَ مَوَٰقِيتُ لِلنَّاسِ وَٱلْحَجِّ ۗ وَلَيْسَ ٱلْبِرُّ بِأَن تَأْتُوا۟ ٱلْبُيُوتَ مِن ظُهُورِهَا وَلَٰكِنَّ ٱلْبِرَّ مَنِ ٱتَّقَىٰ ۗ وَأْتُوا۟ ٱلْبُيُوتَ مِنْ أَبْوَٰبِهَا ۚ وَٱتَّقُوا۟ ٱللَّهَ لَعَلَّكُمْ تُفْلِحُونَ ﴿189﴾

They ask thee, (O Muhammad), of new moons, say: They are fixed seasons for mankind and for the pilgrimage. It is not righteousness that ye go to houses by the backs thereof (as do the idolaters at certain seasons), but the righteous man is he who wardeth off (evil). So go to houses by the gates thereof, and observe your duty to Allah, that ye may be successful.

2:189 · Al-Baqara · juz 2 · page 29 · tafsir at quran.com