7. On the day of Arafah, one should engage in dua. This day is a mubaarak day, even more blessed than the other ten days of Zul Hijjah. It is reported that Hazrat Ali (radhiyallahu ‘anhu) mentioned that on this day, Allah Ta‘ala emancipates more people from the fire of Jahannum than on any other day. Hazrat Ali (radhiyallahu ‘anhu) would also make the following dua on the day of Arafah and encouraged some of his companions to make the same dua:

اَللّٰهُمَّ أَعْتِقْ رَقَبَتِيْ مِنَ النَّارِ وَأَوْسِعْ لِيْ مِنَ الرِّزْقِ الْحَلالِ وَاصْرِفْ عَنِّيْ فَسَقَةَ الْجِنِّ وَالْإِنْسِ

O Allah! Free my neck from the fire of Jahannum, bless me with abundant halaal sustenance, and repel from me the evil and transgressive jinn and people. ^[1]

Zul Hijjah is from the four sacred months of the Islamic calendar. The four sacred months are Zul Qa’dah, Zul Hijjah, Muharram and Rajab. ^[1] The rewards of good deeds carried out in these months are multiplied, and the sins committed in these months are also regarded as more serious. ^[2] Allah Ta‘ala says:

إِنَّ عِدَّةَ الشُّهُوْرِ عِنْدَ اللهِ اثْنَا عَشَرَ شَهْرًا فِيْ كِتَابِ اللهِ يَوْمَ خَلَقَ السَّمٰوٰتِ وَالْأَرْضَ مِنْهَا أَرْبَعَةٌ حُرُمٌ

The number of months in the sight of Allah Ta‘ala is twelve (in a year), so ordained by Him the day He created the heavens and the earth; from among them four are sacred. ^[3]