Muslims believe that Islam is a term synonymous with truth, and that under the glorious and ever-brilliant sun of Islam, by the light of reason and knowledge, truth can be obtained. But in order to obtain that knowledge, and thus attain that truth, man must use his reasoning faculties.

Holy Prophet only a few days prior to his demise.

There he lay, the last and greatest of the grand chain of mighty men whom Allah, in His everlasting mercy and compassion, had sent to the world as inspired messenger of truth and of righteousness, his saintly head pillowed upon Hazrat ‘Ayesha’s (wife) loving knee.

The true believers of Medina, old and young, men and women — nay, even the children — had gathered, in loving sympathy there around the mat whereon lay Mustapha Al-amin, the chosen, the faithful, ar-Rasul-Allah (prophet). Tears glistened in their eyes,

and coursed down the cheeks of even the most grizzled and valiant of the veteran warriors of Islam. Their leader, their friend, their beloved pastor, and, above all, their Prophet, he who had led them from the darkness of ignorance and superstition into the radiant brightness of the truth, had brought them into Islam, the habitation of peace, was about to pass from them. No wonder, then, that their eyes became fountain of tears, and their hearts were heavy and oppressed.

In the agony of distress, almost of despair, one exclaimed: “O Prophet of Allah, thou art ill, thou mayest die, then what is to become of us?”

“You have Al-Qur’an” said Allah’s Messenger.

“Oh, yes, Rasul-Allah, but even with that enlightening book and unerring guide before us, we have had at times to ask from you advice, counsel, and instruction, and if you are taken from us, O Prophet who is there to be our guide?” said the companions.

“Do as I did and as I have said,” was the reply.

“But, O Prophet, after you have gone fresh circumstances may arise which could not have arisen during thy blessed lifetime; what are we to do then? And what are they to do who follow us?”

The Prophet slowly raised his illustrious and saintly head, and with the lurid light of prophecy and inspiration shining radiantly from his noble eyes exclaimed: “Allah hath given to every man as a personal monitor, a conscience and as a guide, his reason; then, use them in respect of all things and Allah’s blessing will ever guide you aright.”