Surah No. 5, Al Maaeda, Ayats No. 3 & 4
وَالْمُتَرَدِّيَةُ وَالنَّطِيحَةُ وَمَا أَكَلَ السَّبُعُ إِلاَّ مَا ذَكَّيْتُمْ وَمَا ذُبِحَ عَلَى النُّصُبِ وَأَن
تَسْتَقْسِمُواْ بِالأَزْلاَمِ ذَلِكُمْ فِسْقٌ الْيَوْمَ يَئِسَ الَّذِينَ كَفَرُواْ مِن دِينِكُمْ فَلاَ تَخْشَوْهُمْ
وَاخْشَوْنِ الْيَوْمَ أَكْمَلْتُ لَكُمْ دِينَكُمْ وَأَتْمَمْتُ عَلَيْكُمْ نِعْمَتِي وَرَضِيتُ لَكُمُ الإِسْلاَمَ
o دِينًا فَمَنِ اضْطُرَّ فِي مَخْمَصَةٍ غَيْرَ مُتَجَانِفٍ لِّإِثْمٍ فَإِنَّ اللّهَ غَفُورٌ رَّحِيمٌ
يَسْأَلُونَكَ مَاذَا أُحِلَّ لَهُمْ قُلْ أُحِلَّ لَكُمُ الطَّيِّبَاتُ وَمَا عَلَّمْتُم مِّنَ الْجَوَارِحِ مُكَلِّبِينَ
تُعَلِّمُونَهُنَّ مِمَّا عَلَّمَكُمُ اللّهُ فَكُلُواْ مِمَّا أَمْسَكْنَ عَلَيْكُمْ وَاذْكُرُواْ اسْمَ اللّهِ عَلَيْهِ وَاتَّقُواْ
o اللّهَ إِنَّ اللّهَ سَرِيعُ الْحِسَابِ
Forbidden (Haram) to you are : dead animals and blood and flesh of swine (Pig), and any animal which has been dedicated to other than Allah, and those animal which are strangled, and the dead through beating, and the dead through falling from a height, and that which has been killed by horns of other animals.Those partly eaten by wild beasts - unless you are able to slaughter them before death and that which has been sacrificed to idols. And (it is also forbidden) that which is distributed to seek luck or decision by draws and lots - such as done by gambling and speculations. All these are the things of sins. This day, those who disbelieved have given up hope of your religion; so do not fear them, but fear Me! This day I have perfected for you your religion and completed My favour upon you, and have chosen for you a religion AL-ISLAM. Whosoever is forced by hunger, with no will to sin: Allah is Forgiving, Merciful.
They ask you (O Mohammad) what is lawful to them. Say: (all) pure and good things are allowed to you. The beasts and birds trained by you as hounds, in a manner as directed by Allah, when they catch and injure the animals and leave them for you ; so you eat them which they catch for you and mention Allah's name on it, and fear Allah. Verily ! Allah is swift to take account.
Surah No.6 , Al Anaam , Ayat No. 145
قُل لاَّ أَجِدُ فِي مَا أُوْحِيَ إِلَيَّ مُحَرَّمًا عَلَى طَاعِمٍ يَطْعَمُهُ إِلاَّ أَن يَكُونَ مَيْتَةً أَوْ دَمًا
مَّسْفُوحًا أَوْ لَحْمَ خِنزِيرٍ فَإِنَّهُ رِجْسٌ أَوْ فِسْقًا أُهِلَّ لِغَيْرِ اللّهِ بِهِ فَمَنِ اضْطُرَّ غَيْرَ بَاغٍ
o وَلاَ عَادٍ فَإِنَّ رَبَّكَ غَفُورٌ رَّحِيمٌ
Say: I do not find in the order revealed to me, anything prohibited to be eaten by anybody, except it be a dead animal , or running blood, or swine flesh (Pork)-as it is impure. In fact ! it is a sin - if an object, which was immolated to the name of other than Allah. But whosoever is compelled because of hunger and necessity and do not transgress and tries to eat again and again; then certainly your Lord is Forgiving, Merciful.