2:249
فَ لَمَّا فَصَلَ طَالُوتُ بِ ٱلْ جُنُودِ قَالَ إِنَّ ٱللَّهَ مُبْتَلِي كُم بِ نَهَرٍ فَ مَن شَرِبَ مِنْ هُ فَ لَيْسَ مِنِّ ى وَ مَن لَّمْ يَطْعَمْ هُ فَ إِنَّ هُۥ مِنِّ ىٓ إِلَّا مَنِ ٱغْتَرَفَ غُرْفَةًۢ بِ يَدِ هِۦ فَ شَرِبُ وا۟ مِنْ هُ إِلَّا قَلِيلًا مِّنْ هُمْ فَ لَمَّا جَاوَزَ هُۥ هُوَ وَ ٱلَّذِينَ ءَامَنُ وا۟ مَعَ هُۥ قَالُ وا۟ لَا طَاقَةَ لَ نَا ٱلْ يَوْمَ بِ جَالُوتَ وَ جُنُودِ هِۦ قَالَ ٱلَّذِينَ يَظُنُّ ونَ أَنَّ هُم مُّلَٰقُوا۟ ٱللَّهِ كَم مِّن فِئَةٍ قَلِيلَةٍ غَلَبَتْ فِئَةً كَثِيرَةًۢ بِ إِذْنِ ٱللَّهِ وَ ٱللَّهُ مَعَ ٱل صَّٰبِرِينَ
And when Saul went forth with the soldiers, he said, "Indeed, Allah will be testing you with a river. So whoever drinks from it is not of me, and whoever does not taste it is indeed of me, excepting one who takes [from it] in the hollow of his hand." But they drank from it, except a [very] few of them. Then when he had crossed it along with those who believed with him, they said, "There is no power for us today against Goliath and his soldiers." But those who were certain that they would meet Allah said, "How many a small company has overcome a large company by permission of Allah. And Allah is with the patient."
33:53
يَٰٓ أَيُّهَا ٱلَّذِينَ ءَامَنُ وا۟ لَا تَدْخُلُ وا۟ بُيُوتَ ٱل نَّبِىِّ إِلَّآ أَن يُؤْذَنَ لَ كُمْ إِلَىٰ طَعَامٍ غَيْرَ نَٰظِرِينَ إِنَىٰ هُ وَ لَٰكِنْ إِذَا دُعِي تُمْ فَ ٱدْخُلُ وا۟ فَ إِذَا طَعِمْ تُمْ فَ ٱنتَشِرُ وا۟ وَ لَا مُسْتَـْٔنِسِينَ لِ حَدِيثٍ إِنَّ ذَٰلِكُمْ كَانَ يُؤْذِى ٱل نَّبِىَّ فَ يَسْتَحْىِۦ مِن كُمْ وَ ٱللَّهُ لَا يَسْتَحْىِۦ مِنَ ٱلْ حَقِّ وَ إِذَا سَأَلْ تُمُو هُنَّ مَتَٰعًا فَ سْـَٔلُ و هُنَّ مِن وَرَآءِ حِجَابٍ ذَٰلِكُمْ أَطْهَرُ لِ قُلُوبِ كُمْ وَ قُلُوبِ هِنَّ وَ مَا كَانَ لَ كُمْ أَن تُؤْذُ وا۟ رَسُولَ ٱللَّهِ وَ لَآ أَن تَنكِحُ وٓا۟ أَزْوَٰجَ هُۥ مِنۢ بَعْدِ هِۦٓ أَبَدًا إِنَّ ذَٰلِكُمْ كَانَ عِندَ ٱللَّهِ عَظِيمًا
O you who have believed, do not enter the houses of the Prophet except when you are permitted for a meal, without awaiting its readiness. But when you are invited, then enter; and when you have eaten, disperse without seeking to remain for conversation. Indeed, that [behavior] was troubling the Prophet, and he is shy of [dismissing] you. But Allah is not shy of the truth. And when you ask [his wives] for something, ask them from behind a partition. That is purer for your hearts and their hearts. And it is not [conceivable or lawful] for you to harm the Messenger of Allah or to marry his wives after him, ever. Indeed, that would be in the sight of Allah an enormity.
5:93
لَيْسَ عَلَى ٱلَّذِينَ ءَامَنُ وا۟ وَ عَمِلُ وا۟ ٱل صَّٰلِحَٰتِ جُنَاحٌ فِي مَا طَعِمُ وٓا۟ إِذَا مَا ٱتَّقَ وا۟ وَّ ءَامَنُ وا۟ وَ عَمِلُ وا۟ ٱل صَّٰلِحَٰتِ ثُمَّ ٱتَّقَ وا۟ وَّ ءَامَنُ وا۟ ثُمَّ ٱتَّقَ وا۟ وَّ أَحْسَنُ وا۟ وَ ٱللَّهُ يُحِبُّ ٱلْ مُحْسِنِينَ
There is not upon those who believe and do righteousness [any] blame concerning what they have eaten [in the past] if they [now] fear Allah and believe and do righteous deeds, and then fear Allah and believe, and then fear Allah and do good; and Allah loves the doers of good.
6:138
وَ قَالُ وا۟ هَٰذِهِۦٓ أَنْعَٰمٌ وَ حَرْثٌ حِجْرٌ لَّا يَطْعَمُ هَآ إِلَّا مَن نَّشَآءُ بِ زَعْمِ هِمْ وَ أَنْعَٰمٌ حُرِّمَتْ ظُهُورُ هَا وَ أَنْعَٰمٌ لَّا يَذْكُرُ ونَ ٱسْمَ ٱللَّهِ عَلَيْ هَا ٱفْتِرَآءً عَلَيْ هِ سَ يَجْزِي هِم بِ مَا كَانُ وا۟ يَفْتَرُ ونَ
And they say, "These animals and crops are forbidden; no one may eat from them except whom we will," by their claim. And there are those [camels] whose backs are forbidden [by them] and those upon which the name of Allah is not mentioned - [all of this] an invention of untruth about Him. He will punish them for what they were inventing.
6:145
قُل لَّآ أَجِدُ فِى مَآ أُوحِىَ إِلَىَّ مُحَرَّمًا عَلَىٰ طَاعِمٍ يَطْعَمُ هُۥٓ إِلَّآ أَن يَكُونَ مَيْتَةً أَوْ دَمًا مَّسْفُوحًا أَوْ لَحْمَ خِنزِيرٍ فَ إِنَّ هُۥ رِجْسٌ أَوْ فِسْقًا أُهِلَّ لِ غَيْرِ ٱللَّهِ بِ هِۦ فَ مَنِ ٱضْطُرَّ غَيْرَ بَاغٍ وَ لَا عَادٍ فَ إِنَّ رَبَّ كَ غَفُورٌ رَّحِيمٌ
Say, "I do not find within that which was revealed to me [anything] forbidden to one who would eat it unless it be a dead animal or blood spilled out or the flesh of swine - for indeed, it is impure - or it be [that slaughtered in] disobedience, dedicated to other than Allah. But whoever is forced [by necessity], neither desiring [it] nor transgressing [its limit], then indeed, your Lord is Forgiving and Merciful."