Restricting oneself to the pleasant Halaal

Allaah the Almighty is Good and accepts only that which is good. And verily Allaah has commanded the Believers to do that which He has commanded the Messengers. So the Almighty has said: O (you) Messengers! Eat of the Tayyibaat [all kinds of Halaal (legal) foods], and perform righteous deeds. [23:51] and the Almighty has said: O you who believe! Eat of the lawful things that We have provided you [2:172] Then he mentioned [the case] of a man who, having journeyed far, is dishevelled and dusty, and who spreads out his hands to the sky saying O Lord! O Lord!, while his food is Haraam (unlawful), his drink is Haraam, his clothing is Haraam, and he has been nourished with Haraam, so how can [his supplication] be answered ?!

عَنْ أَبِي هُرَيْرَةَ رَضِيَ اللهُ عَنْهُ قَالَ: قَالَ رَسُولُ اللَّهِ صلى الله عليه و سلم إنَّ اللَّهَ طَيِّبٌ لَا يَقْبَلُ إلَّا طَيِّبًا، وَإِنَّ اللَّهَ أَمَرَ الْمُؤْمِنِينَ بِمَا أَمَرَ بِهِ الْمُرْسَلِينَ فَقَالَ تَعَالَى: يَا أَيُّهَا الرُّسُلُ كُلُوا مِنْ الطَّيِّبَاتِ وَاعْمَلُوا صَالِحًا، وَقَالَ تَعَالَى: يَا أَيُّهَا الَّذِينَ آمَنُوا كُلُوا مِنْ طَيِّبَاتِ مَا رَزَقْنَاكُمْ ثُمَّ ذَكَرَ الرَّجُلَ يُطِيلُ السَّفَرَ أَشْعَثَ أَغْبَرَ يَمُدُّ يَدَيْهِ إلَى السَّمَاءِ: يَا رَبِّ! يَا رَبِّ! وَمَطْعَمُهُ حَرَامٌ، وَمَشْرَبُهُ حَرَامٌ، وَمَلْبَسُهُ حَرَامٌ، وَغُذِّيَ بِالْحَرَامِ، فَأَنَّى يُسْتَجَابُ لَهُ؟. رَوَاهُ مُسْلِمٌ [رقم:1015].

3an ‘abi hurairah raDhiy Allahu 3anhu qaal: qaal Rasoolullahi Sal Allahu 3alaihi wa sallam :

‘innAllah ta3aala Tayyib(un) la yaqbalu ‘ila Tayyiba(n), wa ‘innAllah ‘amar al Mu’mineena bi maa ‘amara bih-il Mursaleen, fa qaala ta3aala :
((yaa ‘ayyuha ar-Rusoolu kuluu min aT Tayyibaati wa 3amalu SaaliHa(n) )) wa qaala ta3aala :
((yaa ‘ayyuha aladheena aaamanuu kuluu min Tayyibaati maa razaqanaakum ))
thumma dhakar ar-rajul(a) yuTeelus-safara, ash3atha aghbara, yamudu yadayhi ‘ila as-samaa’i :
Yaa Rabbu yaa Rabb, Wa maT3amuhu Haraam(un), wa mashrabuhu Haraam(un) wa malbasuhu Haraam(un), wa ghuthiya bil Haraam(i), fa ‘annaa yustajaabu lah!)).

rawaahu Muslim.