It is narrated from Sayyiduna Abu Musa al-Ash'ari (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) was asked: "Which Islam is the best?" He (peace and blessings be upon him) said: "(The Islam of the one) from whose tongue and hand the Muslims are safe." He was asked: "And which jihad is the best?" He (peace and blessings be upon him) said: "The jihad of the one whose fine horse is hamstrung and whose blood is shed." He was asked: "And which prayer is the best?" He (peace and blessings be upon him) said: "The one in which the standing is long."
Imam al-Tabarani (may Allah have mercy on him) said: "No one narrated this hadith from al-A'mash except Ibn Abi Ghaniyyah."
Hadith Referenceالمعجم الأوسط / باب الألف / 2106
Hadith Takhrij«أخرجه البزار فى «مسنده» برقم: 3016»