Surah Al-Bakarah, Ayah-208 & 209, Holy Quran

O People of Faith! enter into Islam as a whole and do not follow the footsteps of Satan (devil); no doubt, he is your open enemy.
And even after this, that clear commands have come unto you, you slip, then know that Allah is Mighty, Wise...

Surah Al-Bakarah, Ayah-204, 205, 206, 207, Holy Quran

And some one of men is he whose talk seems pleasing to you and bring Allah as a witness on what is in his
heart, while he is the greatest disputer.
And when he turns his back then wanders spreading mischief in the land and destroys the crops and lives and Allah agrees not with the mist chief.
And when it is said to him, 'fear Allah' then he becomes more persistence in sin, to such the hell is enough and that is necessarily, a very bad bed.
And some one of men sells his life in seeking the pleasure of Allah and Allah is Merciful over his bondmen.

Surah Al-Bakarah, Ayah-203, Holy Quran

And remember Allah during Numbered days. Then whoso hastens to leave in two days; there is no sin unto him
and whoso stays behind, then on him is no sin for the God fearing, and remain fearing God and know that you  have to be raised unto Him...

Surah Al-Bakarah, Ayah-201 & 202, Holy Quran

Someone says like this, 'O our Lord give us good in the world and give us good in the Hereafter and save
us from the torment of the Hell.
To such people there is share from their earning and Allah is swift at reckoning.

Surah Al-Bakarah, Ayah-200, Holy Quran

Then when you have completed the acts of Haj, remember Allah as you used to remember your fathers, but
more than that, and some one says like this, 'O our Lord give us in the world and there is no share of him in
the Hereafter...

Sahih Al-bukhari, Vol. 1, Hadith-24

Narrated Ibn' Umar (Radilallahuanhama) : Allah's Messenger (PBUH) Said, "I Have Been Ordered (By Allah) To Fight Against The People Till They Testify LA ILAHA ILLALLAH WA ANNA MUHAMMAD-UR-RASUL ALLAH (None Has The Right To Be Worshipped But Allah & That Muhammad (PBUH) is The Messenger Of Allah), Perform As-Salat (Pray) & Give Zakat. So If They Perform All That, Then They Save Their Lives & Properties From Me Except For Islamic Laws And Their Reckoning (Accounts) Will Be With (Done By) Allah...

Surah Al-Bakarah, Ayah-198, Holy Quran

There is no sin unto you that you seek the bounty of your Lord. Then when you return back from 'Arafat'
remembers Allah near Mashhare-Haram (Qazah Mountain) and remembers Him as He guided you and no
doubt, you had gone astray before...