And do not follow that of which you do not have knowledge. Indeed, the hearing, the sight and the heart - [you] will be asked about all of those.
[Qur'an, 17:36]
And leave alone those who take their religion as play and amusement, and whom the life of this world has deceived, but remind (them) with it (the Qur'an) lest a person be given up to destruction for that which he has earned when he will find for himself no protector or intercessor besides Allah, and even if he offers every ransom, it will not be accepted from him such are they who are given up to destruction, for them will be a drink of boiling water and a painful torment because they used to disbelieve.
[Qur'an, 6:70]
The Prophet Muhammad (peace be upon him) said: "Do not be people without minds of your own, saying that if others treat you well you will treat them well, and that if they do wrong you will do wrong. Instead, accustom yourselves to do good if people do good and not to do wrong if they do evil."
(Al-Tirmidhi, Hadith 1325)
There is a polish for everything that takes away rust; and the polish for the heart is the remembrance of Allah.
(Bukhari)
"O People, no prophet or apostle will come after me and no new faith will be born. Reason well, therefore, O People, and understand my words which I convey to you. I leave behind me two things, the Qur'an and my example, the Sunnah, and if you follow these you will never go astray".
[ Last Sermon of the Prophet sallallaahu 'alayhi wa sallam ]
Allah is the only, the individual and the unique creator of the whole known and unknown universe (tawheed). He has sent us prophets and books for guidance and his signs are obvious in our universe. This knowledge (ilm) is the basis of wisdom. Wisdom is only possible through sensual, emotional and reasonable understanding (aql) and leads to certainty (yaqeen). Certainty in the existence of Allah is the only possible defence against trials and it is the essence of belief (iman). Only with certainty (yaqeen) there can be effective practice of Islam and long-lasting invitation to embracing it (dawah). Blind faith is no faith, because it can be shaken at any time and by anyone.
And do not follow that of which you do not have knowledge. Indeed, the hearing, the sight and the heart - [you] will be asked about all of those.
[Qur'an, 17:36]
And leave alone those who take their religion as play and amusement, and whom the ...