Abdullah B Abi Bakr Al Siddiq (d. 8 H) عبدالله بن أبي بكر الصديق
He was a lad when the Prophet ("saws) and Abu Bakr hid themselves in a cave on mountain Noor at the start of their journey to Madinah. He would mix up with the Quraysh during the day, and report their movements and intentions to the Prophet (saws) by the evening. Later, he accompanied `Ayesha (ra) when she moved to Madinah. He was struck by an arrow during the Tayif campaign in the eighth year after Hijrah and died of the wound a little later.