One of his foul behavior was inventing the forth pillar, others were selling heaven to Qajar courtiers, flattering for the courtiers, providing suitable opportunity for the Ottoman to attack to Karbala. In the book “the interpretation of Jame’h Kabireh letter of pilgrimage” he has considered Mo’avieh, Aboubakr, Omar and etc. as pagans who didn’t believe in monotheism, prophethood and resurrection
Sheikh Ahmad Ehsaee was the pupil of Seyyed Ali Tabatabaee, the author of Riadh, Sheikh Ja’far Kashiful Qita’, Seyyed Mahdi Bahrul Oloum, Muhammad Baqer Vihid Behbahani and late Shahrestani. He could be the clergyman practicing religious jurisprudence 23 years after starting seeking knowledge; that is, at the age of 43 by writing the interpretation of the book “Tabseratul Moteallemin written by Mohaqqeq Helly. He had studied sciences such as religious jurisprudence, principles of jurisprudence, tradition sciences, philosophy, medicine, astronomy, mathematics and etc. and compiled several books in various sciences such as the interpretation of Jame’a Kabireh letter of pilgrimage.
Sheikh Ja’far Kashiful Qita’ has considered him as one of the dignitaries of Imamieh and hardworking in worshipping and Mirza Muhammad Baqer Khansari has assumed him one of the most superior sages and eloquent writers and Mullah Hadi Sabzewari considered him as ascetic person.
However, when Sheikh Ahmad declared his ideas about resurrection, Imamate and etc. and said: “Human being will be mingled having Hour Qolia body,” and Imam of the Time (P.H.) doesn’t possess the physical body,” he will be excommunicated by the third Martyr, the author of the book Jawaher, Seyyed Mojahed, Mullah Ja’far Astar Abadi and etc. Despite of Shiite dignitaries’ extreme oppositions, he established Sheikism movement and disunited the Islamic world and educated pupils who provided the appearance and emergence of Babism cult, Azali and then Baha’ism cults.
He considered himself as the intermediator between Imam of the Time (P.H.) and people and claimed for being infallible: “I owe my knowledge to the holy Imams. My statements are infallible because what I have written is originated from theirs. For they are infallible, the person who is taught by them will be infallible, too.” Ehsaee claimed for recognizing false and true traditions by looking at them.”
One of his indecent behaviors was inventing the forth pillar. He also sold heaven to Qajar courtiers. He flattered for the courtiers and provided the opportunity for the Ottoman to attack Karbala. In the book “the interpretation of Jame’a Kabireh letter of pilgrimage, he has considered Moa’vieh, Abubakr, Omar and etc. as pagans. Who didn’t believe in monotheism, prophethood and resurrection. After publishing the book, Davoud Pasha who the king of Baqdad commissioned a person to surround Karbala and to massacre people. In 1241 A.H., Karbala was surrounded, Shiites were repressed and the religious centers and farms were destroyed. Enemy troops even cannonaded the holy Shrines. “When Sheikh knew the issue he became indignant and escaped to Mecca said Hajj Muhammad Karim Khan. During the way to Medina, he died when he was 90.
 The Great Islamic encychlopidea, Vol. 6, p. 663 and also, Sheikism, the forerunner of Babism, Seyyed Muhammad Hussein Faqih Imani, p. 46, Rah-e-Nikan publishing house, Tehran, 1390.
 In search of reality, Ali Reza Rouzbahani Broujerdi, p. 21, the publishing house of the center for managing Qom theological school, Qom, 1388.
 Fehresuttorath, Seyyed Muhammad Hussein Husseini Jalali, Vol. 2, p. 119; Rowzatul Jannat, Mirza Muhammad Baqer Khansari, Vol. 1, pp. 88-89.
 Ahmad ibn Zeinuddin Ehsaee, the interpretation of Jame’h Kabirehletter of pilgrimage, Vol. 4, pp. 25-28.
 Ahmad ibn Zeinuddin Ehsaee, Jawameul Kalem, Rashtieh epistle, p. 10.
 In search of reality, Ali Reza Rouzbahani Broujerdi, p. 36, the publishing house for the center of managing the theological school of Qom, Qom: 1388.
 Fehrest, Abul Qasem Ibrahimi, p. 246.
 In search of reality, Ali Reza Rouzbahani, p. 28, the publishing house of the center for managing Qom theological school, Qom: 1388.
 The interpretation of Jame’h Kabireh letter of pilgrimage, Sheikh Ahmad Ehsaee, p. 216, line. 26, narrated by: Sheikism, the forerunner of Babism, Seyyed Muhammad Hussein Faqih Imani, p. 68, Rah-e-Nikan publishing house, Tehran, 1390.
 Sheikism, the forerunner of Babism, Seyyed Muhammad Hussein Faqih Imani, pp. 67-68, Rah-e-Nikan publishing house, Tehran, 1390.
 Rouzatul Jannat Fi Ahwal Al-Olama and Al-Sadat, Muhammad Baqer Khansari, Vol. 1, p. 94.