RESUMO
This study aimed to determine the cause of Yabis attribution in the heart by estimating the ash value of three vital organs, such as heart, brain, and liver, of three species, chicken, goat, and buffalo. Creatures are composed of Arkan Arba'a in varied proportions, qualitatively and quantitatively most suitable for accomplishing their functions. Philosophers have described the structural and functional variabilities of species in terms of the Mizaj, which relates to its possible dominant Rukn. The Mizaj of human beings is described as the reflection of the Mizaj of their heart and the organs connected to it. The Mizaj of heart is attributed as Harr-Yabis
Twenty-seven samples of vital organs of three species, each obtained from market, were subjected to total ash value determination. The procedure was followed in accordance with the International Standard, ISO 936:1998[E]
The mean ash value of the chicken's heart, brain, and liver was 5.18%, 7.62%, and 6.56%, respectively. The mean ash value of the goat's heart, brain, and liver was 2.53%, 11.18% and 4.24%, respectively. The mean ash value in the buffalo's heart, brain, and liver was 5.32%, 8.74%, and 6.56%, respectively
Interpretation and Conclusion: Yubusat is required for hardness, stiffness, and durability to stay active and dynamic. Compared with the brain and liver, the heart's rigid nature, consistent action, and resemblance with the coniferous shape of Rukn Nar indicates the presence of Yubusat Nariyya. In this study, the least mean total ash value of the heart among all the three species implies the least presence of Ajza' Ardiyya, thus validating the presence of Yubusat Nariyya in it. Therefore, the heart's structure and function are in accordance with its Hararat and Yubusat Nariyya