4th of Rabi Al-Awwal
Suuratul Al Imraan Verse 171.
يَسْتَبْشِرُونَ بِنِعْمَةٍ مِّنَ ٱللَّـهِ وَفَضْلٍ وَأَنَّ ٱللَّـهَ لَا يُضِيعُ أَجْرَ ٱلْمُؤْمِنِينَ ﴿١٧١
171. They rejoice in a Grace and a Bounty from Allah, and that Allah will not waste the reward of the believers.
Tafsir Ibn Kathir Volume 2, Page 323.
Allah said next,
﴿يَسْتَبْشِرُونَ بِنِعْمَةٍ مِّنَ اللَّهِ وَفَضْلٍ وَأَنَّ اللَّهَ لاَ يُضِيعُ أَجْرَ الْمُؤْمِنِينَ ﴾
They rejoice in a grace and a bounty from Allah, and that Allah will not waste the reward of the believers (3:171).
Muhammad bin Ishaq commented, “They were delighted and pleased because of Allah’s promise that was fulfilled for them, and for the tremendous rewards they earned.” `Abdur-Rahman bin Zayd bin Aslam said, This Ayah encompasses all the believers. Rarely does Allah mention a bounty and a reward that He granted to the Prophets, without following that with what He has granted the believers after them.’