From `Abdul-`Aziz ibn `Abdullah ibn Baz to His Majesty King Faysal ibn `Abdul-`Aziz may Allah guide him to all goodness and bless his life. Amen.
As-salamu `alaykum warahmatullah wabarakatuh (May Allah's Peace, Mercy, and Blessings be upon you!)
May Allah protect you, your Highness assumes a high post which is the hope of the Muslims after Allah (Glorified and Exalted be He), as you are the Custodian of the Qiblah (direction faced for Prayer towards the Ka`bah) of the Muslims and the place where the Messenger of Allah (peace be upon him) migrated. From this blessed place, the Message began and enlightened the world; the first generation of Muslims carried the responsibility of enlightenment of the whole world; and they sacrificed themselves and their money in the Cause of Allah, so the world submitted to them and Islam prevailed.
Being the ruler of this blessed country and having inherited the legacy of your noble predecessors, you should undoubtedly bear the responsibility of Da`wah (calling to Islam) and Jihad (fighting in the Cause of Allah) as much as possible. As you have done this, praise be to Allah that He has enabled you to do it.
Allah (Exalted be He), who is the Most Truthful One, warns the Ummah (nation) against hiding Al-Haqq (the Truth) and encourages them to perform Jihad and Da`wah in His saying, (And remember) when Allâh took a covenant from those who were given the Scripture (Jews and Christians) to make it (the news of the coming of Prophet Muhammad ﺻـﻠﻰ ﺍﷲ ﻋﻠﻴـﻪ ﻭﺳـﻠﻢ and the religious knowledge) known and clear to mankind, and not to hide it
As for those who strive hard in Us (Our Cause), We will surely guide them to Our Paths (i.e. Allâh's religion - Islâmic Monotheism). And verily, Allâh is with the Muhsinûn (good doers).
Indeed in the Messenger of Allâh (Muhammad ﺻﻠﻰ ﺍﷲ ﻋﻠﻴﻪ ﻭﺳﻠﻢ) you have a good example to follow for him who hopes for (the Meeting with) Allâh and the Last Day
And who is better in speech than he who [says: "My Lord is Allâh (believes in His Oneness)," and then stands firm (acts upon His Order), and] invites (men) to Allâh's (Islâmic Monotheism), and does righteous deeds, and says: "I am one of the Muslims."
The Prophet (peace be upon him) said in his Khutbah (sermon) which he delivered in the Farewell Hajj, Behold! Let those who are present convey to those who are absent.
He (peace be upon him) also said, Convey (my teachings) to the people, even if it is a single sentence.
Praise be to Allah, there are many means of communication in this age among the whole world, which facilitates Da`wah. Your Majesty is the one now responsible for conveying Allah's orders to His slaves, which is undoubtedly a great responsibility that requires serious efforts, patience, and persistence.
On the occasion of the twenty fifth anniversary of the establishment of the United Nations, which comes next June, and to which the kings and presidents of the member countries are invited to deliver a speech, I implore Your Majesty that you seize this opportunity to perform Da`wah and call for referring to Shari`ah (Islamic law) in this meeting that shall be attended by most of the Islamic world leaders and others. You should also clarify to them the merits of Islam, that it is the true religion which is perfect for every time and place, that it leads to the benefit of this world and the Hereafter, that it is the religion of happiness and success, that it is the only way to save the lost humanity from the darkness of ignorance to the shore of safety, and that it is the only way to solve all the problems of humanity. You should also explain to them that the Message of Prophet Muhammad (peace be upon him) is general to all people and whoever obeys him enters Jannah (Paradise) and whoever disobeys him enters Hellfire, which clears your conscience and establishes evidence against them.
I hope that Your Majesty gains high rank and glory in this world, and win high ranks in Jannah in the afterworld.
Out of keenness on your interest and that of the Muslims, truthful advice, cooperation in righteousness and piety, and desire to spread Islamic Da`wah among the people, I decided to remind you of that important matter. Your Majesty knows the reality and the corruption, dissolution, atheism and deviation that have afflicted the world nowadays.
I hope that you take care of this matter and apply it. May Allah set right your affairs, help you set right the affairs, guide you, help you guide others, increase your honor in this world and in the Hereafter, make you beneficial to
the people, and save them from Kufr (disbelief) and misguidance to righteousness and guidance thanks to your call. He is the Most Generous One.