 With regard to an Ismâ‘îli commitment to the Ikhwân al-Safâ’, some aspects of their philosophy of nature (geology, mineralogy, and botany) have been recently examined (Baffioni 2008, 2009, 2010b; de Callataÿ 2008). Mineralogy and botany have been explored in order to find similarities with Ismâ‘îli philosophy, in particular with the Ismâ‘îli thinker and missionary Hamîd al-Dîn al-Kirmânî. The result is that they share many basic views, but the Ikhwân has greater detail. Moreover, some aspects of the Ikhwân’s cosmology, and in particular their use of the term and concept of ibdâ‘, are relevant in identifying the similarities (Baffioni 2011a; 2013b; 2013d).