قراءات الإمام عبد الله بن عباس رضي الله عنه و أثرها في تفسير كتاب الله

Ṣaḥabah (R.T.A) especially Ahal-Bait have distinct position among Muslim Ummah. They have served Islamic religion in its initial period and preserved it for the generations to come. Haḍrat ‘Abdullah Ibn e ‘Abbas (RTA) was not only a Ṣaḥabi-e–Rasool (companion of the Prophet), but he was also a member of the family of Muḥammad (peace be on him). He remained in his company during his journeys and his stays in different places and got (training) from him. Muḥammad (peace be on him) made a special prayer for him i.e. “O Allah, give him understanding in religion and teach him the interpretation of the Qur’ān.” In this article the researcher aims to analyse and explain his services in the field of Islamic Sciences, Tafsir ul, Qur’ān specially the number and detail of Qiraat e Mutawatirah and Shaẓah narrated by him and their effects on the Science of Tafsir ul. Qur’ān.

Thedynamicalstudyofcompactobjectsin Generalrelativity

In this thesis, we discuss the dynamical stability of charged compact objects with the help of some mathematical models. For this purpose, we have selected three different models of charged compact objects to discuss the possible occurrence of cracking under different conditions. In first selected model, we discuss charged anisotropic compact objects with a linear equation of state. In second model, we study anisotropic charged compact object PSR J1614-2230 in quadratic regime, while in third model, we study charged compact stars corresponding to embedded class one metric with perfect inner fluid distribution. We investigate the impact of electromagnetic field on the stability regions of charged self-gravitating compact objects by using the concept of cracking. For this, we have applied local density perturbation scheme to the hydrostatic equilibrium equation as well as on physical parameters involved in the model. In particular, we have examined the cracking of charged compact objects (a) PSR J1614-2230, PSR J1903+327, Vela X-1, SMC X-1 and Cen X-3 with linear equation of state (b) PSR J1614-2230 with quadratic equation of state (c) Her X-1, PSR 1937+21, PSR J1614-2230, PSR J0348+0432 and RX J1856-37 corresponding to embedded class one metric. We conclude that these objects exhibit cracking and stability regions decreases with the increase of charge. We also extend two conventional polytropic equations of state to generalized polytropic equations of state for spherical and cylindrical symmetries in the context of general relativity. For this purpose, we formulate the general framework to discuss the physical properties of spherical and cylindrical polytropes with charged anisotropic inner fluid distribution under conformally flat condition. We investigate the stability of generalized polytropic models through Tolman-mass and Whittaker formula for spherical and cylindrical symmetries respectively. We also discuss the possible occurrence of cracking in charged anisotropic polytropes developed under the assumption of generalized polytropic equation of state in two different ways (i) by carrying out local density perturbation under conformally flat condition (ii) by parametric perturbations. We conclud that one of the generalized polytropic equations of state results into a physically viable model and cracking appears for a specific range of density and model parameters.