"سرية" refers to a military expedition or mission in Islamic history, particularly during the time of the Prophet محمد. These missions were typically smaller in scale compared to full-fledged battles and were often conducted to gather intelligence, disrupt enemy activities, or secure strategic locations. The term is derived from the Arabic root word for secrecy, highlighting the covert nature of these operations. Notable examples include the سرية of عبد الله بن جحش, which aimed to gather information about the Quraysh tribe. These expeditions played a crucial role in the early Islamic military strategy and expansion.