These are days to honor the places which Allah has decreed to be held as sacred...
These are days to honor the places which Allah has decreed to be held as sacred, and these are the days for performing the pilgrimage; (I do so) in the hope that Allah will include me in the pilgrims' supplications.' The Messenger of Allah (S) then said, ‘In this case, for each of these days which you fast you shall receive rewards equivalent to setting one hundred slaves free in addition to sacrificing a hundred cattle for the Ka’ba, and providing a hundred horses to transport those who make jihad in defense of Islam.
So when it is the Day of Tarwiyah [^1], you will receive rewards equivalent to setting one thousand slaves free in addition to sacrificing a thousand cattle for the Ka’ba and a thousand horses to transport those who make jihad in defense of Islam.
On the day of Arafat, you will receive rewards equivalent to setting two thousand slaves free in addition to sacrificing two thousand heads of cattle for the Ka’ba and two thousand horses to transport those who go on jihad to defend Islam, in addition to forgiveness of the sins of sixty past years and sixty ones thereafter.'" This tradition is recorded on p. 101 of Thawab al-A’mal wa ‘Iqab al-A’mal by Shaikh al-Qummi al-Saduq.
Fasting the Day When the Earth was Expanded Verse 30, Chapter 79 (al-Nazi’at), reads, "And the earth He expanded thereafter." The Arabic word used with reference to the earth's expansion is daha . On p. 122, Vol. 94, of Bihar al-Anwar , and also on p.
101 of al-Saduq's Thawab al-A’mal , Ahmed ibn Idris quotes al-Ash’ari quoting Ahmed ibn al-Husayn quoting Abu Tahir ibn Hamza quoting al-Washsha' saying that he, then a young man, was once in the company of his father when they ate supper with Imam al-Rida (as) on the 25th of Thul-Qi’da.
The Imam (as) told us that that night was the night during which Prophets Ibrahim and Jesus son of Mary, peace be upon them, were born, and also when the earth was expanded from underneath the Ka’ba, in addition to some other attribute relevant to it which I never heard from anyone else, adding, "Whoever fasts during its day will be regarded as though he had fasted for full sixty months." Fasting the Day of Arafat Three books make a reference to such fast: Bihar al-Anwar (p. 123, Vol.
94), ‘Uyun Akhbar al-Rida (p. 36, Vol. 2), and ‘Ilal al-Sharai’ (p. 73, Vol. 2).