وَعَنْ عُقْبَةَ بْنِ عَامِرٍ عَنِ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ مِثْلُهُ غَيْرَ أَنَّهُ قَالَ: ((فَإِنِ اجْتَهَدْتَ فَأَصَبْتَ الْقَضَاءَ فَلَكَ عَشَرَةُ أُجُورٍ، وَإِنِ اجْتَهَدْتَ فَأَخْطَأْتَ فَلَكَ أَجْرٌ وَاحِدٌ))
Sayyiduna Uqbah bin Amir (may Allah be pleased with him) also narrated a similar hadith from the Noble Prophet (peace and blessings be upon him), except that in it, he said: The Prophet (peace and blessings be upon him) said: If you exercise ijtihad and reach the correct decision, you will receive ten rewards, and if you exercise ijtihad and make a mistake, you will receive one reward.