Assalaamu alaykum wa rahmatullah,
Tafseer ibn katheer
Concerning His statement,
﴿وَوَهَبْنَا لَهُ مِن رَّحْمَتِنَآ أَخَاهُ هَـرُونَ نَبِيّاً ﴾
(And We granted him his brother Harun, (also) a Prophet, out of Our mercy.) This means, "We responded to his request and his plea on behalf of his brother and We made him a Prophet as well.'' This is as Allah says in another Ayah,
﴿وَأَخِى هَـرُونُ هُوَ أَفْصَحُ مِنِّى لِسَاناً فَأَرْسِلْهِ مَعِىَ رِدْءاً يُصَدِّقُنِى إِنِّى أَخَافُ أَن يُكَذِّبُونِ ﴾
(And my brother Harun he is more eloquent in speech than me: so send him with me as a helper to confirm me.Verily, I fear that they will belie me.) ﴿28:34
﴾ Also, Allah said,
﴿قَدْ أُوتِيتَ سُؤْلَكَ يمُوسَى﴾
((Allah said: ) "You are granted your request, O Musa.'') ﴿20:36﴾ He also said,
﴿وَيَضِيقُ صَدْرِى وَلاَ يَنطَلِقُ لِسَانِى فَأَرْسِلْ إِلَى هَـرُونَ - وَلَهُمْ عَلَىَّ ذَنبٌ فَأَخَافُ أَن يَقْتُلُونِ ﴾
(So send for Harun. And they have a charge of crime against me, and I fear they will kill me.) ﴿26:13-14﴾ Because of this, some of the Salaf (predecessors) said, "No one in this life pleaded on behalf of someone else more than Musa pleaded for his brother to be a Prophet.'' Allah, the Exalted said,
﴿وَوَهَبْنَا لَهُ مِن رَّحْمَتِنَآ أَخَاهُ هَـرُونَ نَبِيّاً ﴾
(And We granted him his brother Harun, (also) a Prophet, out of Our mercy.)
﴿وَاذْكُرْ فِى الْكِتَـبِ إِسْمَـعِيلَ إِنَّهُ كَانَ صَـدِقَ الْوَعْدِ وَكَانَ رَسُولاً نَّبِيّاً - وَكَانَ يَأْمُرُ أَهْلَهُ بِالصَّـلَوةِ وَالزَّكَـوةِ وَكَانَ عِندَ رَبِّهِ مَرْضِيّاً ﴾
(54. And mention in the Book, Isma`il. Verily, he was true to what he promised, and he was a Messenger, (and) a Prophet.) (55. And he would enjoin on his family and his people the Salah and the Zakah, and his Lord was pleased with him.)
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