Nahj al-Balāgha
Hadith 1922٣٦٣. وَقَالَ (عليه السلام): مِنَ الْخُرْقِ الْمُعَاجَلَةُ قَبْلَ الْإِمْكَانِ، وَالْأَنَاةُ بَعْدَ الْفُرْصَةِ.
363. Amīr al-mu’minīn, peace be upon him, said: To make haste before the proper time or to delay after a proper opportunity, in either case is folly.