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.
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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.’