O ye who Believe! Choose not disbeliever for ( Your ) friends in place of Believers. Would ye give Allah a clear warrant against you ???
Narrated Masruq: Abdullah bin 'Amr mentioned Allah's Messenger(SAW) saying that he was neither a Fahish nor a Mutafahish. Abdullah bin 'Amr added, Allah's Apostle said, 'The best among you are those who have the best manners and character.' (Sahih Bukhari Book no 73 Good Manners and Form (Al-Adab) Hadith no 56)
Surah AL-BAQARAH (2;153)
Yaaa-'ayyuhallaziina 'aamanusta-'iinuu bis-Sabri was Salaah; Innallaaha ma-as-saabiriin.
Ae momino! tum sabr aur Namaaz ke zariye meri(Allah) madad haasil karo, bila-shuba Allah saabireen ke saath hai
O ye who believe! seek help in steadfastness and prayer. Lo! Allah is with the steadfast
Surah AALI-IM-RAAN (3:85) Wa many-yabtagi gayral' Islaami Diinan falany-yuqbala minh; wa huwa fil'-Aakhirati minal-khaasiriin.
Aur jo Islam ke siwa kisi aur deen ka taalib hoga us se hargiz qubool na kiya jaaega, aur wo hi aakhirat mein nuqsaan uthaane waala hoga.
And whoso seeketh as religion other than the Surrender to Allah it will not be accepted from him(Allah) and he will be a loser in the hearafter.