[Machine] In His saying, "And it is not lawful for them to conceal what Allah has created in their wombs" [Al-Baqarah 228], it is said that the rope (umbilical cord) says, "Do not say, 'I am not connected to my mother by a rope,' nor say, 'I am connected by a rope,' when you are not connected by a rope." And this was narrated by Layth ibn Abi Sulaym from Mujahid regarding menstruation and the umbilical cord in general.  

فِي قَوْلِهِ {وَلَا يَحِلُّ لَهُنَّ أَنْ يَكْتُمْنَ مَا خَلَقَ اللهُ فِي أَرْحَامِهِنَّ} [البقرة 228] قَالَ يَعْنِي الْحَبَلَ يَقُولُ لَا تَقُولَنَّ الْمَرْأَةُ لَسْتُ بِحُبْلَى وَلَا تَقُولَنَّ إِنِّي حُبْلَى وَلَيْسَتْ بِحُبْلَى وَرَوَاهُ لَيْثُ بْنُ أَبِي سُلَيْمٍ عَنْ مُجَاهِدٍ فِي الْحَيْضِ وَالْحَبَلِ جَمِيعًا