<p>Among the religious traditions of humanity the Imami Shi&#39;ah tradition within Islam is unmatched in its rich corpus of devotional texts (&lt;i&gt;du&#39;a&lt;/i&gt; and &lt;i&gt;ziyarah&lt;/i&gt; literature) handed down from the original leaders of the faith the Prophet Muhammad and the Imams of his family the &lt;i&gt;Ahl al-Bayt&lt;/i&gt;.The &lt;b&gt;&lt;i&gt;Mafatih al-Jinan&lt;/i&gt;&lt;/b&gt; is the most popular manual of Islamic devotional observances and prayer-texts by &lt;b&gt;Shaykh Abbas Qummi&lt;/b&gt; which draws its contents from well-known reliable sources. As a manual of devotional literature the &lt;i&gt;Mafatih al-Jinan&lt;/i&gt; follows a long tradition established by the &lt;i&gt;Misbah al-Mutahajjid&lt;/i&gt; of Shaykh Tusi (d. 460/1067) and followed up in the works of Sayyid Ibn Tawus (d. 664/1265) Kaf&#39;ami (d. 905/1499) and others. Most of the contents of the &lt;i&gt;Mafatih&lt;/i&gt; are drawn from these earlier works. Since its publication the &lt;i&gt;Mafatih&lt;/i&gt; has enjoyed an uncontested popularity among Farsi-speaking Muslims and its Arabic and Urdu versions are widely used by the devout in the Arab world and the Indian subcontinent.</p>