The highly revered owner of a theological seminary in Sulaymáníyyih requested Bahá’u’lláh to draw up a document which would perpetuate the custodianship of his institution for his descendants.

Whenever Bahá’u’lláh came into Sulaymáníyyih, to make use of the public bath or to make any purchases, He would stay in the Takyih, the theological seminary of Mawláná Khálid. The original mosque of which Mawláná Khálid had been the custodian was destroyed in later times, but had been rebuilt to the same proportions. Mawláná Khálid was, at the time of Bahá'u'lláh's sojourn, an old man highly revered amongst the Kurds. He requested Darvish Muhammad [Bahá’u’lláh] to draw up a document which would perpetuate the custodianship of his institution for his descendants. That and other works from Bahá'u'lláh's pen are now owned by families in Sulaymáníyyih, who refuse to part with them at any price. Some three decades ago, a possessor of such a highly-valued relic stated that even should he be offered a million dinárs (a million pounds) he would still refuse to let that priceless document go, because he was certain all bounties would be cut off from him and his family, should it leave their possession.

A figure highly revered by the Kurds in Sulaymáníyyih is Káká Ahmad, a saint of past ages. But as compared with Íshán,[1] the designation given out of veneration to Darvish Muhammad, they had no doubt that the latter ranked higher. Even the particular mountain, called Sar-Galú, which Bahá’u’lláh had especially made His home, is held to be a place holy and sacred. 

- Hasan Balyuzi (‘Bahá’u’lláh King of Glory’)

[1] Íshán means They’, and Bahá'u'láh was known by this designation even before going to Sulaymániyyih.

Though Bahá’u’lláh hadn’t seen the book that He was requested to elucidate “He was able to resolve their perplexities in so amazing a fashion”

“God is My witness,” was Bahá’u’lláh’s instant reply to the learned delegation, “that I have never seen the book you refer to. I regard, however, through the power of God, … whatever you wish me to do as easy of accomplishment.” Directing one of them to read aloud to Him, every day, a page of that book, He was able to resolve their perplexities in so amazing a fashion that they were lost in admiration. Not contenting Himself with a mere clarification of the obscure passages of the text, He would interpret for them the mind of its author, and expound his doctrine, and unfold his purpose. At times He would even go so far as to question the soundness of certain views propounded in that book, and would Himself vouchsafe a correct presentation of the issues that had been misunderstood, and would support it with proofs and evidences that were wholly convincing to His listeners. 

- Shoghi Effendi (‘God Passes By’)

While in exile in Kurdistan, some “most eminent doctors and most distinguished students” requested Bahá’u’lláh to elucidate “the abstruse passages” in a famous religious book

That seat of learning [theological seminary that Bahá’u’lláh was staying at] had been renowned for its vast endowments, its numerous takyihs, and its association with Saláhi’d-Dín-i-Ayyúbí and his descendants; from it some of the most illustrious exponents of Sunní Islám had gone forth to teach its precepts, and now a delegation, headed by Shaykh Ismá‘íl himself, and consisting of its most eminent doctors and most distinguished students, called upon Bahá’u’lláh, and, finding Him willing to reply to any questions they might wish to address Him, they requested Him to elucidate for them, in the course of several interviews, the abstruse passages contained in the Futúhát-i-Makkíyyih, the celebrated work of the famous Shaykh Muhyi’d-Dín-i-‘Arabí. 

- Shoghi Effendi (‘God Passes By’)