Gleanings — Paragraph 139
Source (Arabic)
علی محمّد رسول الله وإنّه حین النّزول قدّر له کنوز المعاني علی ما ینبغي له من لدن مقتدر قدیر ولکنّ النّاس ما عرفوا منه إلّا علی مراتبهم ومقاماتهم وکذلک إنّه ما کشف لهم وجه الحکمة إلّا قدر حملهم وطاقتهم فلمّا بلغ النّاس إلی البلوغ تجلّی علیهم بما فیه في سنة السّتّین حین الّذي ظهر جمال القِدم باسم عَلِيٍّ قبل نبیل
Translation
Consider that which hath been sent down unto Muḥammad, the Apostle of God. The measure of the Revelation of which He was the bearer had been clearly foreordained by Him Who is the Almighty, the All-Powerful. They that heard Him, however, could apprehend His purpose only to the extent of their station and spiritual capacity. He, in like manner, uncovered the Face of Wisdom in proportion to their ability to sustain the burden of His Message. No sooner had mankind attained the stage of maturity, than the Word revealed to men’s eyes the latent energies with which it had been endowed — energies which manifested themselves in the plenitude of their glory when the Ancient Beauty appeared, in the year sixty, in the person of ‘Alí-Muḥammad, the Báb.