Where is this Maitreya promise recorded as "The world was not ready to embrace the Kingdom of God on earth, as it is in Heaven"?
The promise was recorded, logically, as it was not embraced, the world was not ready.
ANOTHER BUDDHA WILL ARISE
He made it clear that He was about to pass away, and when [His cousin and foremost disciple] Ananda became disconsolate, Buddha consoled him and said:
'Have I not formerly declared to you that it is in the very nature of all things near and dear to us, to pass away? O Ananda, seeing that whatever is brought into being contains within itself the inherent necessity of dissolution, how can it be that such a being (as the visible Siddhartha) should not be dissolved?'He informed Ananda that in another three months He would pass away. Ananda, suppressing his tears, said to the Blessed One:'Who shall teach us when Thou art gone?'And the Blessed One replied:...'I am not the first Buddha Who came upon this earth, nor shall I be the last. In due time
another Buddha will arise in the world, a Holy One, a supremely enlightened One, endowed with wisdom in conduct, auspicious knowing the universe, an incomparable leader of men, a Master of angels and mortals. He will reveal to you the same eternal truths which I have taught you. He will preach to you His religion, glorious in its origin, glorious at the climax and glorious at the goal, in spirit and in the letter. He will proclaim a religious life, wholly perfect and pure, such as I now proclaim.' His disciples will number many thousands, while Mine number many hundreds.'
Ananda said,
'How shall we know Him?'The Blessed One replied:'He will be known as Maitreya, which means He Whose name is "kindness.'"
(Note: As you may already know, Baha'u'llah's given name, Husayn, is Arabic for "kindness)
A disciple asked Buddha,
"Is not
Amitabha, the Infinite Light of Revelation, the Source of innumerable miracles?"And the Blessed One replied:"Amitabha, the Unbounded Light, is the Source of Wisdom, of virtue, of Buddhahood. The deeds of sorcerers and miracle mongers are frauds, but what is more wondrous, more mysterious, more miraculous than Amitabha?"- (Sanskrit:
“Infinite Light”)
"But Master," continued the disciple, "is the promise of the happy region vain talk and a myth?"
"What is this promise?" asked Buddha, and the disciple replied,
"There is in the West a Paradisian country called the Holy Land, exquisitely adorned with gold and silver and precious gems. There are pure waters with golden sands, surrounded by pleasant walks covered with large lotus flowers. Joyous music is heard, and flowers rain down three times a day. There are singing birds whose harmonious notes proclaim the praises of religion and in the minds of those who listen to their sweet sounds, remembrance arises of the Buddha, the law and the brotherhood. No evil birth is possible there, and even the name of hell is unknown. He who fervently and with a pious mind repeats the words 'Amitabha Buddha' will be transformed to the happy region of this holy land, and when death draws near, Buddha with His saintly followers will stand before him, and there will be perfect tranquility."
"In truth," said Buddha, "there is such a happy paradise. But the country is spiritual and is accessible only to those that are spiritual. You say it lies in the West. This means look for it where He Who enlightens the world resides."
"Your description," Buddha continued, "is beautiful; yet it is insufficient and does little justice to the glory of the Holy Land. The worldly can speak of it in a worldly way only, they use worldly similes and worldly words. But the Holy Land in which the holy live is more beautiful than you can say or imagine. However, the repetition of the name 'Amitabha Buddha' is meritorious only if you speak it with such devout attitude of mind as will cleanse your heart and attune your will to do works of righteousness. He only can reach the happy land whose soul is filled with the Infinite Light of Truth. He only can live and breathe in the spiritual atmosphere of the Western Paradise who has attained enlightenment."
Further, Buddha stated,
"A true follower of the Tathagata (a title of Buddha meaning 'He Who has thus come') does not found his trust on austerities and rituals but, giving up the idea of self, relies with his whole heart upon Amitabha, which is the unbounded light of truth."
Regards Tony