حبیب السیر 24: Sultan 'Abdu-r Rashid.

24

According to the Rauzatu-s Safa, this 'Abdu-r Rashid was the son of Mas'ud bin Sultan Mahmud; but according to the author of the Guzida, he was the son of Sultan Mahmud bin Subuktigin, and his patronymic was Abu Mansur, and his surname Majdu-d daula. 'Abdu-r Rashid had been confined by the order of Maudud in a fort which was between Bust and Ghaznin, and 'Abdu-r Razzak, after he had heard of the death of Maudud, moved to Sistan, and hastened towards that fort, and placed 'Abdu-r Rashid upon the throne, the officers of the army yielding their allegiance. 'Abdu-r Rashid then moved towards Ghaznin, and 'Ali, without either couching lance or striking a blow with the sword, betook himself to the desert of flight.
When 'Abdu-r Rashid had fully established his authority in Ghaznin, he sent Tughril the chamberlain, who was Maudud's wife's brother, and in whom he had great confidence, with 1000 cavalry, all of them brave soldiers, to Sístán; and Tughril, having overcome Abu-l Fazl and Beghui Saljúkí, in a short time obtained the entire command of that kingdom; and imbued with the idea of rooting out the shoots of the prosperity of 'Abdu-r Rashíd, he marched towards Ghaznín. When he arrived within five parasangs of the city, 'Abdu-r Rashíd discovered his deceit and treachery, and fled to one of his forts. Tughril entered Ghaznín, sent letters and messengers threatening and intimidating the kotwál of the fort, until the garrison, getting distrustful, delivered over to him 'Abdu-r Rashíd and all the descendants of Mahmúd; upon which Tughril, having murdered all the princes, forced against her will the daughter of Mas'úd, the son of Sultán Mahmúd, into the bonds of marriage. It was from this circumstance that he was surnamed Tughril Káfir-i Ni'amat (i.e. the ungrateful).
When Jarjír, who was one of the chief men among the nobles of Ghaznín, and who was then residing in Hindústán, heard of these shameful proceedings, he set his mind on getting rid of such an ungrateful wretch, and forthwith wrote letters to the daughter of Sultán Mas'úd, and to the grandees of Ghaznín, blaming and finding fault with them for conniving at the base actions of Tughril. Instigated by reading these letters, a band of bold men, who hated Tughril in their hearts, advanced one day with the foot of courage to the throne where Tughril was sitting, and cut his body in pieces with the wound-inflicting sword. After this event, Jarjír having arrived at Ghaznín, took Farrukhzád out of prison, where he had been incarcerated by Tughril, and made him king. According to the Rauzatu-s Safá, Farrukhzád was the son of Mas'úd bin Sultán Mahmúd; but according to Hamdu-lla Mustaufi, he was the son of 'Abdu-r Rashid.