Naeem bin Hammar reported,
A man asked the Prophet ﷺ, "Which martyrs are the most excellent?"He replied, "Those who, when they meet the enemy in the battle line, do not turn their faces away until they are killed. They will recline in the highest chambers of Paradise, and your Lord will smile upon them. When your Lord smiles upon a servant in this world, there is no reckoning against him."
Azami 376
Hasanعن نعيم بن همار
أن رجلا سأل النبي ﷺ: أي الشهداء أفضل؟ قال: الذين إن يلقوا في الصف لا يلفتون وجوههم حتى يقتلوا، أو يتلبطون في الغرف العلى من الجنة، ويضحك إليهم ربك، وإذا ضحك ربك إلى عبد في الدنيا فلا حساب عليه.
Imam Ahmad (22476), Abu Yaala (6855), Ibn Abu Asim in Al-Jihad (228), Bayhaqi in Al-Asma wal-Sifat (986), and Ajurri in Al-Sharia (650) all narrated it through routes going back to Ismail bin Ayyash, from Buhayr bin Saeed, from Khalid bin Madan, from Kathir bin Mura, from Naeem bin Hammar, and he mentioned it.Ismail bin Ayyash is truthful in his narration from the Levantines of his own homeland, and this is one such case, for Buhayr, with a fatha on the ba and a kasra on the unpointed letter, bin Saeed is Abu Khalid, a man of Homs. However, Bukhari said in Tarikh al-Kabir (8/95), after narrating it through this route, "Muhammad bin Muthanna said, from Abdul-Wahhab, narrated to us by Burd, who is Ibn Sinan, from Sulayman bin Musa, from Makhul, from Kathir bin Mura, from Qays Juzami, from Naeem bin Hammar Ghatafani," and he mentioned the hadith. So he inserted "Qays Juzami" between Kathir bin Mura and Naeem bin Hammar.Bukhari established that Kathir bin Mura heard directly from Naeem bin Hammar, who was among those who heard from the Prophet. This means Kathir bin Mura narrated this hadith through two routes, both of which are sahih.