Ikhlaas (i.e., sincere devotion of one’s worship exclusively to Allah, Exalted is He) is one of the conditions for the acceptance of worshipful acts and good deeds. In fact, a worshipful or good act may incur destruction upon the doer if he does not sincerely devote it exclusively to Allah, Exalted is He. Conayahly, it could be a reason for attaining reward and bliss (in the Hereafter) if he sincerely devotes it exclusively to Him. In this hadeeth, the Prophet ﷺ stated the divine promise for a Mujaahid who participates in Jihaad in the cause of Allah, Exalted is He, when he sincerely devotes his deed to Him alone. He ﷺ said: “… and Allah knows better who sincerely strives in His Cause,” meaning that Allah, Exalted is He, knows best people’s intentions and knows those who partake in Jihaad with the intention of upholding the truth and raising the Words of Allah (i.e., His Religion) and those who merely seek worldly gains, fame, and to be labeled “heroes.” Whoever participates in Jihaad sincerely for the sake of Allah, Exalted is He, devoting his intention exclusively to Him, earns the reward of a person who observes obligatory fasting at daytime and also devotes his nights to worship while displaying humbleness and sincerity to Him. This worshipper earns the rewards of both worshipful acts by the grace of Allah, Exalted is He. He ﷺ likened such person to a fasting person because the latter abstains from eating and drinking and sexual activity, and similarly a Mujaahid refrains from carrying out his everyday activities and devotes himself entirely to Jihaad. Moreover, a person who observes fasting and prays at night is devoting his day and night to worship unceasingly, and similarly a Mujaahid earns unceasing rewards for all his time devoted to Jihaad. Then the Prophet ﷺ stated that Allah, Exalted is He, guarantees that He will grant a Mujaahid in His cause one of two great rewards: martyrdom and entering Paradise, or returning him to his home safely with the rewards of partaking in Jihaad, whether without the spoils of war, with both the reward and the spoils of war. The hadeeth highlights the grace of Allah, Exalted is He, bestowed upon the Mujaahid. .