Sayyiduna Abu Ayyub al-Ansari (may Allah be pleased with him) narrates that the Prophet (peace and blessings be upon him) said: "This prayer (the narrator says: meaning the Asr prayer) was made obligatory upon those before you, but they neglected it. Whoever among you today guards it will be given its reward twice. And after it no (voluntary) prayer is to be offered until the 'shahid' is seen" (the narrator says: this means the star).
Al-Tabarani recorded it in al-Mu'jam al-Kabir. Its chain contains a narrator, Ibn Ishaq, who is thiqah (trustworthy) but a mudallis (one who practises tadlis).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الصلاة / 1713
Hadith Gradingمحدثین:إسنادہ حسن۔
Hadith Takhrij«المعجم الكبير للطبرانى باب الخاء ، باب من اسمه خزيمة ابو تميم الجيشاني 3975 ، أخرجه المعجم الكبير للطبراني برقم: 4084»